If you’re thinking about starting to roast on your own, a practical way to begin is by choosing a small coffee roasting machine. But even among small roasters, different machines offer different features and capabilities, and not all of them might suit the needs or results you’re aiming for. In this blog, we’ll share what to consider before buying a small coffee roasting machine for in-house roasting.

What Qualifies as a Small Coffee Roasting Machine?

Generally, a small coffee roasting machine handles batches of around 1 to 3 kilograms per roast. These machines offer greater control over coffee quality and flavor without the cost or space requirements of industrial-scale equipment.

They’re commonly used by cafes that want to roast their own beans in-house, as well as small businesses entering the coffee roasting industry. If you’re wondering about the difference from larger commercial machines, small coffee roasting machines usually come with lower power requirements and simpler controls that are beginner-friendly.

But small doesn’t mean limited when it comes to quality. Many small roasters nowadays are packed with modern features and professional-level control, sometimes rivaling what larger machines can do.

What to Look for When Buying a Small Roasting Machine

Before investing in a small coffee roasting machine, here are five things you need to consider:

1. Roasting Method (Hot Air or Drum Roaster)

Hot air roasters or fluid bed roasters rely mainly on convection, using heated air to transfer energy to the beans. This tends to produce a cleaner, brighter cup, and roasting times are usually faster since the strong airflow heats the beans quickly and evenly. Still, the final result depends on the coffee itself and how well you managed the roasting variables.

Drum roasters use a different method. Heat is transferred through direct contact with the metal drum, combined with some convection from hot air moving inside. This combination tends to bring out fuller body and more sweetness. The tradeoff compared to a hot air roaster is that traditional drum roasters can take a little longer to roast, and mastering it may require some practice for beginners.

Neither method is inherently better than the other. Both can produce high-quality coffee when handled well. It really depends on the flavor profile you prefer, how much control you want over the process, and what fits your production needs.

2. Match the Machine to Your Production Needs

Planning is the key to success, and that applies to choosing a roasting machine too. Start by having a clearer picture of how much coffee you actually roast or plan to roast regularly. Many buyers run into problems because they don’t plan their production needs carefully enough.

A common mistake is choosing a machine that’s too small, leaving them struggling to meet production demands, while going too large means spending more than necessary and ending up with inefficient, underfilled batches.

So before you decide, start with these few questions:

• How many kilograms of beans do you currently roast in an average week?
• Do you expect that volume to grow significantly within the next year or two?
• If demand increased, could this machine keep up? Or would you need to replace it sooner than planned?

3. Evaluate Features That Support Your Daily Roasting Operation

A good machine is defined by its quality and how helpful the features are in supporting your roasting process. Look for a machine made with food-grade materials and solid construction that can hold up to daily use over the long run. Speaking of features, automation is worth prioritizing. It helps reduce the guesswork and preserve consistency, especially for roasteries where more than one person handles roasting duties.

Safety features shouldn’t be overlooked either. Roasting involves high heat and moving parts, so it’s important to choose a machine that comes with safety features like emergency shut-off or safety controls for burners and ignition to keep operators safe during long roasting sessions.

4. Space and Workflow Requirements

The next factor to consider is having a space that’s ready for roasting. First, check the location where you plan to roast your coffee. Problems can arise during the roasting process, as it produces smoke and odors that may bother customers if your roastery is inside the cafe, or nearby neighbors if it’s located in a residential area.

The solution is to have proper ventilation or use equipment such as an afterburner, which can help control odors in the exhaust before it’s released into the air.

The layout of your roastery also needs to be planned carefully to create a more efficient workflow. For example, a machine that takes up too much space can interfere with your workflow. It might sound small, but these little disruptions can make the roasting process less efficient.

5. Choose a Reliable Roasting Machine Brand

Track record says a lot about a brand, specifically, how long it’s been around and whether other roasteries or cafes are already relying on its machines day-to-day. A brand that’s been tested through real use is usually the safer bet. When something breaks down (and eventually, it will), you want a brand that offers after-sales support and clear warranty coverage.

Berto Roaster ticks all of these boxes with two coffee roasting machines built for anyone ready to produce their own coffee.

Berto Essential

This compact drum roaster has a 1 kg capacity, equipped with the roasting features that professional coffee roasters need. Berto Essential includes automation with PlaybackAssist™, which connects with roasting software such as Cropster and Artisan. For accuracy, this machine is built with BertoLogic™, which guarantees exceptional roast quality every time. Although the features are advanced, the control system is simple to operate and responsive.

Berto Essential Air

With a 3 kg capacity, Berto Essential Air is the right pick if you prefer hot air roasting. It shares the same powerful design, with PlaybackAssist™, BertoLogic™, and a minimalist control panel. But one thing that sets it apart is its title as the world’s smallest commercial hot-air coffee roaster with a smokeless system. You can produce a clean cup while reducing air pollution for more sustainable roasting.

Start your coffee roasting journey with a reliable machine from Berto Roaster. Connect with us today and our team will guide you in choosing the one that matches your goals.

The post Things to Consider Before Buying a Small Coffee Roasting Machine for In-House Roasting appeared first on Berto Coffee Roaster.

Artikel ini akan membahas panduan roasting kopi untuk pemula, mulai dari dasar-dasar yang wajib diketahui hingga tips praktis untuk memulai perjalanan roasting Anda.

Apa itu Coffee Roasting?

Coffee roasting atau sangrai kopi adalah proses mengubah biji kopi mentah yang masih berwarna hijau menjadi kecokelatan melalui proses pemanasan. Namun, tujuan utama dari proses ini adalah untuk mengembangkan aroma dan karakter khas biji kopi tersebut. Sebab kopi memiliki varietas dan origin yang berbeda, proses sangrai kopi yang tepat dapat membantu menonjolkan keunikan rasa dari kopi tersebut.

Dasar-Dasar Coffee Roasting yang Wajib Pemula Tahu

Terdapat empat dasar-dasar roasting kopi yang perlu Anda ketahui dan wajib untuk dikuasai:

1. Mengenal Jenis Biji Kopi

Dua jenis kopi yang paling sering dijumpai adalah Arabika dan Robusta. Arabika memiliki karakter lembut, manis, dengan keasaman yang lebih tinggi. Sedangkan Robusta lebih kuat, pahit, dan keasaman yang lebih rendah. Bagi pemula yang ingin belajar proses menyangrai kopi, Arabika biasanya lebih sering digunakan karena rasanya lebih variatif untuk dieksplorasi.

Indonesia sendiri memiliki beragam biji Arabika yang patut dicoba, seperti Gayo dari Aceh, Toraja dari Sulawesi, Kintamani dari Bali, dan Mandailing dari Sumatera Utara.

2. Memilih Metode Roasting

Metode roasting paling sederhana adalah menggunakan wajan di atas kompor atau oven. Namun, cara ini sering menghasilkan hasil sangrai yang kurang konsisten karena kontrol suhu yang sulit. Untuk menghasilkan hasil roasting yang presisi, Anda perlu menggunakan mesin khusus untuk menyangrai kopi.

Mesin sangrai kopi umumnya bekerja dengan metode konduksi dan konveksi. Konduksi memanaskan biji lewat kontak langsung dengan drum atau komponen besi dalam mesin sangrai, menghasilkan rasa lebih pekat dengan body atau sensasi di mulut yang lebih tebal. Untuk hasil rasa yang lebih ‘bersih’, maka mesin sangrai kopi dengan metode konveksi lebih cocok karena pemanasan biji dilakukan melalui aliran udara panas di sekitar biji kopi di dalam mesin sangrai.

Berto Roaster menghadirkan Berto Essential dengan sistem konduksi dan Berto Essential Air dengan sistem konveksi atau hot air system yang cocok untuk produksi skala kecil. Meski compact, kedua mesin ini sangat mumpuni karena dilengkapi dengan sistem yang dibutuhkan roaster profesional dan juga dirancang dengan BertoLogic™ untuk mendapatkan hasil yang konsisten serta panel kontrol yang mudah dioperasikan, bahkan oleh pemula sekalipun.

3. Tahapan Roasting Kopi

Selama proses roasting, biji kopi mengalami beberapa perubahan tampilan dan pembentukan aroma melalui tahapan berikut:

• Fase pengeringan (Drying stage): Fase awal yang bertujuan untuk menghilangkan kadar air dalam biji kopi. Ciri-cirinya adalah biji yang tadinya berwarna hijau mulai berubah menjadi kuning pucat.
• Fase browning (Browning stage): Setelah kadar air berkurang, biji mulai berubah warna menjadi cokelat muda. Di tahap ini juga, reaksi kimia yang mulai memunculkan aroma khas dari biji kopi mulai terjadi.
• Fase pengembangan (Development stage): Biji terus berubah warna menjadi lebih gelap, dan di sinilah first crack atau retakan pertama terjadi, yaitu suara retakan yang menandakan biji mulai mengembang dan melepaskan gas. Jika proses roasting dilanjutkan lebih lama, biji akan mencapai second crack atau retakan kedua yang suaranya lebih halus dan terdengar bertubi-tubi dalam waktu singkat. Bunyi retakan ini penting untuk diperhatikan karena menjadi penanda utama untuk menentukan kapan harus menghentikan proses roasting.

4. Pendinginan dan Penyimpanan

Biji kopi yang sudah matang harus langsung didinginkan, karena biji kopi tersebut masih menyimpan panas yang bisa membuatnya terus “memasak” meski sudah dikeluarkan dari mesin sangrai.

Setelah dingin, simpan di wadah kedap udara dan jauh dari sinar matahari, lalu biarkan biji kopi beristirahat atau melalui proses degassing selama beberapa jam hingga beberapa hari (tergantung pada tingkat sangrai) sebelum digiling dan diseduh. Tujuannya agar gas CO2 yang masih terperangkap bisa keluar dan rasa kopi menjadi lebih stabil.

Faktor yang Perlu Dipertimbangkan Saat Memilih Biji Kopi Specialty

Asal Biji Kopi (Origin)

Setiap daerah penghasil kopi memiliki karakteristik dan profil rasa yang berbeda karena dipengaruhi oleh kondisi geografis, seperti ketinggian, iklim, jenis tanah, dan curah hujan tempat kopi ditanam.

Metode Pasca Panen Kopi

Cara pengolahan setelah dipanen atau processing method dapat memengaruhi cita rasa kopi. Contohnya, kopi yang diproses dengan metode wet atau washed dikenal memiliki rasa yang lebih bersih dan konsisten, sementara kopi yang diproses secara natural atau dry process cenderung memiliki rasa yang lebih kompleks dan fruity.

Kesegaran Biji Kopi

Pastikan Anda membeli biji kopi dari pemasok (supplier) yang terpercaya dan memeriksa tanggal panen, karena kualitas biji kopi dapat menurun seiring waktu, terutama setelah disimpan selama 6 hingga 12 bulan.

Kualitas Biji Kopi

Kualitas biji kopi diklasifikasikan berdasarkan ukuran, bentuk, kepadatan, dan jumlah cacat. Biji dengan kualitas yang lebih tinggi umumnya dapat menghasilkan cita rasa yang lebih konsisten saat disangrai.

Tips Praktis agar Hasil Roasting Lebih Maksimal dan Konsisten

Setelah Anda memulai perjalanan roasting kopi Anda, tantangan berikutnya adalah memaksimalkan hasil roasting dan menjaganya tetap konsisten. Berikut adalah beberapa tips yang bisa Anda coba untuk mencapai hal-hal tersebut:

Mulai dari Batch Kecil

Untuk pemula, batch sekitar 100-250 gram sudah cukup untuk belajar atau bereksperimen. Setelah beberapa kali mencoba dan merasa percaya diri dengan hasilnya, Anda bisa perlahan meningkatkan jumlah per batch-nya.

Catat Setiap Sesi Roasting

Mencatat adalah kunci untuk mendapatkan hasil roasting yang konsisten. Catat suhu, waktu, dan rasa di setiap sesi agar Anda dapat membandingkan dan menemukan profil roasting yang paling sesuai dengan preferensi Anda.

Pilih Alat Roasting yang Berkualitas

Peralatan roasting yang tepat menawarkan fitur-fitur yang memudahkan Anda memantau dan mengatur proses roasting dengan lebih akurat. Selain itu, peralatan berkualitas biasanya lebih tahan lama, sehingga dapat digunakan dalam jangka panjang.

Gunakan Indra Anda Saat Roasting Berlangsung

Meski fitur pada mesin roasting dapat mempermudah proses sangrai kopi, mengasah kemampuan sensorik tetap penting jikalau terjadi perubahan pada biji kopi yang tidak selalu terdeteksi oleh mesin.

Berkreasi dengan Blend atau Mencampur Biji Kopi

Jika sudah terbiasa dengan single origin, Anda bisa mulai bereksperimen dengan blending atau mencampur biji kopi sendiri untuk menciptakan rasa unik khas specialty coffee.

Kesabaran dan Ketelitian adalah Kunci Keberhasilan Roasting Kopi

Roasting kopi adalah keterampilan yang akan semakin terasah seiring bertambahnya jam terbang. Jadi, jangan terburu-buru mengejar hasil sempurna. Anggap juga setiap kegagalan sebagai bagian dari proses untuk menemukan profil rasa yang Anda inginkan.

Mulai perjalanan Anda sebagai coffee roaster dengan langkah-langkah di atas dan pastikan Anda memilih mesin sangrai kopi yang tepat, seperti Berto Roaster. Hubungi kami sekarang dan tim Berto siap membantu mencari mesin yang sesuai dengan kebutuhan roasting Anda.

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But what happens when you put together a hot air coffee roasting machine that’s known for its energy-efficient design with heat recovery systems? Can this combination double down on roasting efficiency? Let’s take a closer look at how heat recovery systems work and what kind of benefits they can bring to your roasting operation.

Heat Loss in Hot Air Roasters and How It’s Recoverable

The first source of heat loss in hot air coffee roasting machines comes from the exhaust air. During roasting, hot air flows through the roasting chamber to transfer heat to the coffee beans while carrying away the moisture released during the drying phase. In most conventional systems, this air then simply leaves the machine through the exhaust system and disappears.

Chaff removal is the second source. Beans shed a thin outer layer called coffee chaff, and this residue needs to be removed to avoid blockages or catching fire inside the machine. So the airflow is used to carry the chaff out, which also pulls some hot air out along with it.

Because the air from these processes still carries valuable thermal energy, you can actually recover and reuse some of that heat elsewhere in the roasting process with a heat recovery system.

How a Heat Recovery System Works

A heat recovery system works in a continuous loop. Heat that would normally escape gets captured and fed back into the roasting process or reused for other heating applications in the roastery. Here are the steps on how heat recovery works:

1. The Exhaust Passes Through a Heat Exchanger

After leaving the roasting chamber, the exhaust air is channeled through a heat exchanger. The heat exchanger is the brain of a heat recovery system and is usually installed externally and connected to the roasting machine. It works by pulling thermal energy from the exhaust and transferring it to incoming fresh air, without letting the two air streams mix.

This means that only the heat is transferred to the incoming air, while smoke, chaff, moisture, and other by-products remain in the exhaust stream and continue through the exhaust system.

2. Fresh Incoming Air is Preheated

The recovered heat warms the incoming air before it reaches the burner or heating system. Because the air is already partially heated, your machine only needs less energy to bring it to the desired roasting temperature for the next batch.

One thing you should know: A heat recovery system is different from an afterburner, even though they work with exhaust air. An afterburner’s main function is to break down harmful compounds in the exhaust air before it’s released into the atmosphere.

That said, there is one type of afterburner that does include a built-in heat exchanger to recover heat. It’s called a recuperative afterburner. So after oxidizing the harmful compounds, it then captures the thermal energy and uses it to preheat incoming air.

The Efficiency Benefits of Heat Recovery in Hot Air Roasters

One of the most noticeable benefits is lower energy consumption, as the burner or other heating systems require less energy to reach the desired roasting temperature. The machine can operate more efficiently and may lower fuel and electricity bills over the long run.

Hot air coffee roasting machines are already praised by many coffee roasters for their shorter warmup time. But you can get better efficiency when combined with a heat recovery system. The preheated air helps the machine reach target temperature even faster, which translates to more batches completed in a working day.

More than operational efficiency, this combination also brings other benefits:

• Fewer carbon emissions by reducing fuel consumption and supporting sustainable-production practices that many customers and communities are looking for these days.
• More reliable roast quality because steady batch-to-batch temperatures help keep your roast profile consistent and repeatable.
• Less strain on the burner because it operates under a lower workload, which can help reduce wear and lower the risk of unexpected breakdowns or costly repairs down the road.

Berto Essential Air With Heat Recovery Systems

What makes Berto Essential Air stand out doesn’t stop at being the smallest commercial hot air roaster in the world. It also brings a range of features designed to deliver efficient and consistent roasting. This machine is equipped with a heat recovery system that lets you reuse wasted heat to roast batch after batch. It’s also built with BertoLogic™ for exceptional consistency and precision, and 100% convection for even heat with a smokeless system for cleaner results.

Experience maximum efficiency and true precision of a hot air coffee roasting machine with Berto Essential Air. Connect with us today.

The post How Heat Recovery Systems Improve the Efficiency of Hot Air Coffee Roasting Machines appeared first on Berto Coffee Roaster.

Unfortunately, some of these coffee roasting terms sound and look similar, so they’re often used interchangeably when they shouldn’t be. In some cases, misunderstandings can occur that disrupt the roasting process or affect the final roast.

This article will discuss several terms in the coffee roasting process that are often misunderstood, helping you understand the differences and avoid mistakes when applying them.

Bean Temperature (BT) vs. Rate of Rise (RoR)

Bean Temperature (BT) is the actual temperature of the coffee beans during the roast. It shows how hot the beans are at any given moment, helping the roaster understand which stage of the roast they are in.

Meanwhile, Rate of Rise (RoR) measures how quickly the bean temperature is increasing, usually in degrees per minute. In a nutshell, BT tells you how hot the beans are right now, while RoR tells you how fast that temperature is rising.

Beginner roasters often confuse distinguishing between the two because RoR is calculated from BT data. Both are also displayed on the same graph in roasting software. This makes the two lines look similar or visually confusing even though they represent different information.

The easiest way to tell them apart is by looking at the shape of the graph. The BT curve usually drops slightly after the beans are charged into the roaster, then rises steadily until the end of the roast (usually like a checkmark symbol). In contrast, the RoR curve rises at the beginning, reaches a peak and then gradually declines for the rest of the roast.

Development Time vs. Development Time Ratio (DTR)

Both metrics focus on the period after first crack, and because DTR is closely related to Development Time, it’s easy to think they measure the same thing.

Development Time is simply the time between the start of first crack and the moment the beans are dropped into the cooling tray. It is measured in minutes and seconds. Development Time Ratio (DTR) uses that same period but expresses it as a percentage of the total roast time. Usually using the formula: (DTR = Development Time​ / Total Roast Time x 100%).

Here’s why the difference matters. Let’s say you have two roasts (‘Roast A’ and ‘Roast B ‘) with the same 2-minute Development Time, but the total roast time is different.

• Roast A has a total roast time of 8 minutes, giving it a 25% DTR.
• Roast B has a total roast time of 12 minutes, giving it a 16.7% DTR.

This means Roast A spends a larger proportion (or percentage) of its total roast in the development stage than Roast B. The differences can lead to different flavor profiles in the final cup, even with identical development times.

Maillard Reaction vs. Caramelization

Maillard reaction and caramelization produce a brown color in coffee beans, which leads some people to think they’re just two names for the same chemical process. But let’s look at their definitions first.

The Maillard reaction happens between reducing sugars and amino acids. It starts earlier in the roast, somewhere around 140°C–150°C. You’ll notice the coffee looks light brown and still has a dry, matte surface.

At higher temperatures, usually from around 170°C and above, caramelization becomes more noticeable. This process is only the thermal breakdown of sugars, without any amino acids involved. The higher temperature also means caramelization tends to build after the Maillard reaction has already started, giving beans a darker brown color with a shinier, almost glossy surface.

Another way to spot the differences between these two is when tasting the coffee. The Maillard reaction often produces nutty, toasted, malty, or chocolate-like flavours. Caramelization contributes sweeter notes, such as caramel, toffee, and burnt sugar, like adding more richness and depth to the cup.

Scorching vs. Tipping

Scorching and tipping are two roasting defects that coffee roasters commonly encounter. Both leave dark burn marks on the beans, and at first glance, they can look the same. But they have different causes and appear in different locations on a bean, so it’s important to know each defect before you try to fix it.

Scorching tends to happen when the charge temperature is too high, the machine is overfilled, or the drum is spinning too slowly. The flat surface of the bean ends up sitting against the hot drum for too long, leaving dark burn marks on that area.

Tipping shows up when the heat you apply is too aggressive for the beans to absorb evenly. The thinnest part of the bean (its edge or tip) ends up taking the damage and leaves a small burn spot. That’s why it’s called “tipping”.

For tips on preventing these roasting defects, check out our blog on how to avoid scorching and tipping.

Roast Quality Vs. Roast Development

Roast quality is about how a coffee tastes and feels in the cup, things like sweetness, balance, and body. Development is a different thing. It’s part of the coffee roasting process itself, specifically what happens to the bean from the first crack to the end of the roast. You can track and measure it as the roast happens, but you can’t taste it directly.

The problem is these two ideas often get mixed up, especially when “developed” becomes a catch-all word. Coffee roasters often say a coffee is “underdeveloped” or “overdeveloped” when what they really mean is that it tastes flat or too roasty. But two coffees can share the same bean color, the same weight loss, and (again) the same development time, yet still taste completely different. When that happens, “developed” isn’t the right word to explain it.

A clearer way to talk about it is to describe what you taste. If a coffee lacks sweetness, say so. If it tastes too grassy or too roasty, say that instead.

Remember, the words you use shape how you and your team think about the roast. And how you think about the roast shapes the results in the cup. So use the terms right, and you’ll make better roasting decisions.

Read our blog to learn more about other coffee roasting terms and techniques. Or if you’re now looking to find the right machine for your roastery, Berto Roaster has a range of roasters built for consistency and control, from small-batch to production-scale. Contact us today and we’ll help you find the best option for your needs.

The post Let’s Clear Up Common Coffee Roasting Terms That are Easy to Mix Up appeared first on Berto Coffee Roaster.

Things like weather conditions and the time of day can change the environment inside your roastery and affect the coffee roasting process. So every coffee roaster needs the skill to understand these changes and adjust the roasting process to get consistent roasts.

In this blog, we’ll explore the factors that influence your roastery environment and share practical steps for managing them.

How Environmental Changes Alter Your Roast

Coffee roasting relies on precise heat transfer to transform green coffee beans into aromatic roasted coffee. In physics, energy transfer occurs as heat naturally flows from hotter to cooler areas. During the coffee roasting process, heat supplied by the roasting machine is transferred to the coffee beans, while some is also lost to the surrounding environment.

This is where roastery conditions begin to matter. On a hot afternoon, the temperature difference between the machine and the surrounding air is smaller, which can slightly reduce heat loss and often make the machine more responsive. But during an early morning roast that is typically cooler, the greater temperature difference can increase heat loss, meaning the roasting machine may require more energy to maintain stable conditions.

So, when using the same roasting settings under different environmental conditions, your next batch is likely to have different results because the roasting process may take longer or shorter.

Environmental Factors That Affect the Coffee Roasting Process

Besides differences in roasting time, changes in environmental conditions can also be caused by natural factors or daily habits that, without you realizing it, may influence the coffee roasting process. Let’s break down the causes one by one:

Ambient Temperature

Ambient temperature is simply the temperature of the air inside your roastery. When it’s higher, your machine usually needs less energy to reach and hold temperature. When it’s lower, you might notice the warm-up takes longer, since more heat is lost to the cooler air around it.

These shifts often come from seasonal changes. Think dry versus rainy seasons in tropical climates, or winter and summer in places with four seasons. Other than nature, changes in ambient temperature can also come from day-to-day actions, like running the air conditioning during a roast or between batches.

Humidity

Humidity is another environmental factor that shifts with weather and seasonal conditions. It can play a role in how green coffee behaves once it charges into the machine, though its effect during the roast itself is smaller than the ambient temperature.

Roasting in higher humidity can slow the drying stage because the surrounding air already holds more moisture and can’t absorb as much from the bean. But lower humidity has the opposite effect, with beans drying more quickly due to faster evaporation.

Humid environments can also affect green coffee if it’s not stored properly. Coffee is hygroscopic, meaning its cellular structure absorbs or releases moisture based on the surrounding air. When coffee beans have extra moisture content, they tend to absorb heat differently during the roasting process compared to beans stored under stable and controlled conditions.

Ventilation and Airflow in the Roastery

Ventilation is really important for safety, but did you know it also contributes to roasting consistency? As multiple batches are roasted, heat and exhaust accumulate in the roasting space and gradually raise the room temperature. If the roastery doesn’t have proper ventilation, the roasting machine will draw back that hot air and make the airflow unstable, as well as make the next batch run at a different temperature from the last one.

Everyday activities that are easy to overlook can also shift airflow, like opening a large door or window during a roast. These sudden changes in incoming air can temporarily disrupt airflow patterns and system stability.

Practical Ways to Manage Environmental Changes

Not all environmental changes can be controlled since nature also plays its part. But you can build awareness of your roastery conditions through preparation and small adjustments. Here are a few practical ways to manage them:

1. Monitor Conditions Before Every Roast Session

Before every session, check the ambient temperature and humidity in your roastery. A simple hygrometer and thermometer are all you need. Log these readings alongside your roast data and you’ll start spotting patterns that make adjustments easier and more informed.

2. Adjust Charge Temperature to Match the Conditions

You can lower the charge temperature slightly when roasting on hotter days or during peak afternoon heat to compensate for the higher ambient temperature in the roastery space. For cooler mornings or in cold weather, raise the charge temperature or extend your pre-heat time to give the machine a stable starting point before charging the beans.

3. Create Your Seasonal Profiles

Another way to improve consistency (especially for you who prefer not to chase reactive adjustments every season) is to create separate roast profile settings for different seasonal or weather conditions. Label them clearly in your roasting software for the same coffee beans, such as “wet/rainy season profile” and “dry season profile”. You’ll get a reliable starting point in each roast and save more time because you don’t need to adjust from scratch whenever conditions shift.

4. Control What You Can Inside the Roastery

Try not to roast coffee beans directly under an open window or near an air-conditioning vent, as this can cause sudden temperature changes. It’s also important to store your coffee beans in airtight, moisture-resistant containers to prevent them from absorbing excess moisture when environmental conditions change.

5. Consider a Roasting Machine With a Recirculated Convection System

Modern coffee roasting machines are now equipped with technologies that help roasters manage changing environmental conditions. One example is the recirculated convection system on Berto Type R Roaster. This system recirculates the hot air generated during roasting instead of relying on outside air. With this internal air circulation, heat transfer stays more stable and far less affected by changes in ambient temperature.

You’ll experience a consistent roast profile from one batch to the next, without having to worry about changing conditions around your roastery.

Learn more about Berto Roaster lineup, or reach out to our team if you’d like to discuss your roasting needs and find the perfect machine for your roasting operation.

The post The Roaster’s Guide to Managing Environmental Changes in the Coffee Roasting Process appeared first on Berto Coffee Roaster.

So before they get the chance to compromise your production and roast quality, let’s take a look at the common types of green coffee bean defects, where they come from, and practical tips to minimise them.

Types of Green Coffee Bean Defects

The Specialty Coffee Association (SCA) classifies green coffee defects into two categories: primary defects and secondary defects. These defects are commonly assessed through SCA green grading using a 350g sample of green coffee beans. Defect count is one important factor in determining whether a coffee qualifies as specialty grade, alongside cup quality.

Primary defects are the ones you really don’t want to find. They have a significant impact on cup quality, often introducing unpleasant or harsh flavors. Even a single occurrence in a 350g sample can count as one full defect.

Meanwhile, secondary defects are less severe but still undesirable. They are measured using an equivalence system, meaning the number of defects counted depends on the type. For example, ten beans with slight insect damage are considered equivalent to a full defect.

The table below breaks down the types of defects in each category.

Note: The defect ratio indicates how many beans are needed to count as one full defect in a 350 g sample. A 1:1 ratio means one bean equals one full defect, while a 5:1 ratio means five beans are required to count as one full defect.

Where Do Green Coffee Bean Defects Come From?

Green coffee defects are typically caused by issues that happen at different stages of the coffee journey. Here are some of the most common causes:

The Harvesting Stage

Picking unripe or overripe cherries often results in immature or black beans. Unripe beans tend to appear smaller and pale green, while overripe ones can turn partially or even fully black. Both carry undesirable flavors that can be difficult to mask, even with careful roasting.

Coffee Processing Stage

Delayed depulping or excessive fermentation during coffee processing can lead to sour beans, which often show yellowish or reddish discoloration, as well as darker defects such as partial or full black beans.

Post-Harvest Drying Stage

Inconsistent drying, where beans are dried too slowly or unevenly, makes them more vulnerable to mold growth and discoloration. These issues are often visible through an uneven surface texture or patchy discoloration across the bean.

Improper Storage

Environmental conditions during shipping or storage at the roastery, including excess moisture, heat, and poor ventilation, can accelerate oxidation and promote microbial growth. Over time, this can significantly degrade the quality and flavor potential of the beans.

Insect Damage

One of the most common pest culprits is the coffee berry borer, which bores into coffee cherries to feed and lay eggs. The damage usually appears as small pinholes or hollow beans that are commonly found during green coffee sorting.

What Happens If You Roast Defective Green Coffee Beans?

One of the first things you’ll notice when roasting defective green coffee is how difficult it is to achieve a consistent and balanced roast. Defective beans often have different densities, moisture levels, sizes, and internal structures compared to healthy beans.

Because of this, they absorb and transfer heat differently inside the roasting machine. Some beans may roast too quickly, while others remain underdeveloped. For example, low-density beans from defects like floaters or insect-damaged beans are more likely to scorch. Immature beans, on the other hand, may still appear pale even after roasting.

How about during cupping? This is where defects become even more obvious. Off-flavors from defective beans can easily overshadow the natural flavor of the healthy beans in the same batch. Full black beans and sour beans may bring burnt, ashy, or vinegary notes. Meanwhile, immature beans can add harsh, grassy, bitter, or astringent flavors.

In the end, the real cost is the extra time, energy, and effort spent on beans that are harder to roast and more likely to end up as waste.

Tips to Minimize Green Coffee Bean Defects

As a roaster, you cannot completely eliminate green coffee defects because many factors happen before the coffee reaches your roastery. However, you can still reduce the risk of defects affecting your roast process and cup quality by taking a few careful steps.

1. Start With Good Sourcing

Work closely with trusted suppliers or farms that have consistent harvesting and processing standards. Good sourcing helps you understand where the coffee comes from, how it was processed, and how carefully it was handled before delivery or export.

You can also request a green coffee sample before purchasing a full lot. This gives you a chance to check for visible defects and roast a small batch to evaluate the quality before committing to a larger purchase.

2. Sort Green Coffee Beans Before Roasting

Make green coffee quality checks part of your pre-roasting routine. This is important because some defective beans can still slip through the supplier’s selection process. You can do this manually through hand sorting or by using tools such as density sorters, screen-size graders, or color sorters, depending on your production scale.

3. Store Green Coffee Beans Properly

To prevent mold growth and moisture damage, store your beans in airtight, moisture-proof containers. Also, make sure to keep them away from direct sunlight and areas with unstable temperature or humidity.

With these practices, you can reduce the risk of buying coffee that may cause problems later in production or end up going to waste.

To learn more about green coffee beans, you can also check our blogs on how to choose green coffee beans and how to keep green coffee beans fresh for longer.

Have questions about coffee roasting or need help finding the right roasting machine for your roastery? Get in touch today, and we’ll be happy to assist you!

The post All About Green Coffee Bean Defects and How to Prevent Them appeared first on Berto Coffee Roaster.

But if you explain it with overly technical terms or repeat what is written on the packaging, customers may become even more confused and hesitant to buy. That’s why in this blog, we’ll explore several simple ways to explain coffee notes in a way that is easier for customers to understand.

What Are Coffee Notes and Why Do They Confuse Customers?

Coffee notes or tasting notes are descriptive terms that coffee roasters use to explain how a coffee tastes, smells, and feels in the mouth. They often reference familiar things like fruit, chocolate, nuts, or floral characteristics, but this does not mean those ingredients were added to the coffee. These characteristics develop naturally and are shaped by factors like origin, variety, processing method, roast level, and brewing technique. Many of these terms are reflected in the SCA Coffee Taster’s Flavor Wheel, a tool designed to help coffee professionals put sensory experiences into words.

But not every customer knows this, and that is where the confusion begins. Some assume the flavors come from added ingredients or syrups. The confusion can grow even more when the coffee packaging lists several notes at once, making it hard to imagine how all those flavors can exist in a single cup.

As a coffee seller, your role is to bridge that gap. Explaining flavor notes well means helping customers picture what they might taste without creating unrealistic expectations. Here are a few simple ways to make them click with your coffee!

Use Flavors They Know to Explain the Notes

Helping customers understand coffee notes starts with using simpler language and descriptions they already know. One way to do this is by connecting coffee notes to flavors they are already familiar with in daily life.

Instead of saying “chocolatey,” you can describe it as a slightly bitter taste that may remind them of dark chocolate. For a note like “blueberry,” you can say it has a tangy and refreshing sweetness, much like biting into the fruit. A “floral” note can be explained as light and aromatic, like jasmine. Meanwhile, “earthy” can be described as a deep, grounded, and natural taste, similar to the smell of fresh soil after rain. These small shifts in wording can help customers more easily imagine what the coffee tastes like before even trying it.

This approach not only makes the notes easier to understand but also sparks curiosity. Once customers can picture the flavor in their mind, they may feel more open and excited to give your coffee a try.

Let Them Experience Before You Explain

If you offer coffee tastings, use this opportunity to help customers understand flavor notes more easily. Let them try the coffee first without giving too much explanation, then ask what flavors they notice. This encourages customers to be more engaged because they discover the notes themselves instead of being told what they should taste.

It also helps customers understand how multiple notes on the packaging can appear at different moments while drinking the coffee, whether in the first sip, in the middle, or in the aftertaste.

With this method, you can create a more enjoyable conversation with your customer and help them feel more confident about the coffee they’re about to buy.

If They Ask for a Recommendation, Start with a Question

When customers ask for a coffee recommendation, it can be tempting to immediately walk them through all the notes listed on the packaging. But this can overwhelm them, especially for customers who are still getting familiar with specialty coffee.

A better place to start is with a simple question. Something like “Do you usually prefer something sweet or more bitter?” or “Do you enjoy fruity flavors or something more nutty?”

These are questions that most people already have an opinion on and do not require any coffee knowledge to answer. So customers can feel comfortable and heard, rather than put on the spot for not knowing enough about coffee.

From there, the recommendation becomes much more straightforward. And once you understand their preference, you can introduce the flavor notes using the first or second methods above.

Finally, the Best Explanation is an Honest One

Not every tasting note is easy to describe, and that is completely fine. Some notes are subtle, complex, or difficult to explain without the right reference point. If you or your team are unsure, it is better to focus on the most dominant notes instead of trying to explain everything in a way that sounds excessive or inaccurate.

Consistency across your team also matters. Make sure everyone is aligned on the same descriptions and terminology for each coffee you offer. When your team uses the same terms, customers always get the same understanding, no matter who they speak to.

After all, customers don’t need a perfect explanation. They only need enough clarity to make a confident decision. Because the best explanation is not about sounding like the most expert one, but about helping customers find a cup of coffee they truly enjoy and would choose again.

For more insights on coffee roasting and business tips, check out our blog. Or if you’re looking for a roasting machine recommendation for your roastery, our team is here to help you find the right one. Contact us today!

The post How to Help Customers Understand Coffee Notes Without Sounding Too Technical appeared first on Berto Coffee Roaster.

Why Invest in Eco-Friendly Coffee Bean Packaging

Global coffee consumption continues to rise, but it comes with an environmental cost. Most roasteries still rely on multi-layer plastic and aluminum foil packaging that is difficult to recycle and contributes to growing waste in landfills and oceans, making packaging a bigger part of the sustainability challenge.

At the same time, consumers are becoming more environmentally aware, especially Gen Z and Millennials, who actively seek brands that align with their values. And for many of them, the first impression starts with the packaging. So even if your roasting process is sustainable, packaging is still what catches their eye and can influence their purchasing decisions.

What to Expect When Switching to Sustainable Coffee Bean Packaging?

Before deciding to switch to sustainable coffee bean packaging, here are some benefits and challenges worth keeping in mind:

Key Benefits of Sustainable Coffee Packaging Design

• Helps reduce waste that would otherwise end up in landfills or pollute the environment.
• Supports a circular economy by using recycled alternatives instead of virgin materials.
• Gives your brand a clear edge by showing a genuine commitment to values that today’s consumers care about.
• Makes customers feel good about their purchase, knowing it contributes to something bigger than just a great cup of coffee.
• That positive feeling tends to spread, as people are more likely to recommend brands that align with their values.

The Challenges of Sustainable Coffee Packaging Design

• Eco-friendly materials and specialized printing typically come at a higher cost than standard plastic or foil-lined packaging.
• Many sustainable materials offer weaker barrier protection, with paper-based options preserving freshness for only a few weeks to months, compared to up to 12 months with foil-lined bags.
• Sourcing can be more time-consuming due to limited availability and a smaller pool of specialized suppliers.

Materials to Consider for Your Eco-Friendly Coffee Packaging

The right packaging material does two things well: it keeps your beans fresh and minimizes environmental impact. These are some of the most commonly used options in the roasting industry today:

Recyclable Mono-Plastic (LDPE)

As the name suggests, mono-plastic packaging uses a single plastic material called Low-Density Polyethylene (LDPE). It is 100% recyclable through polyethylene (PE) recycling streams, which are widely available across processing facilities. In terms of freshness, this type of packaging is thought to offer a long shelf life and perform similarly to conventional plastics.

Compostable Bioplastics (PLA & PBS)

Have you ever seen packaging made from cassava? That is called compostable bioplastics. They are made from plant-based materials such as cassava, cornstarch, or sugarcane. These materials are fermented to produce biopolymers like Polylactic Acid (PLA) or Polybutylene Succinate (PBS) and formed into flexible films. The result is a material that looks and functions similarly to plastic, but is designed to break down under the right composting conditions.

For durability, this packaging can preserve coffee freshness for up to 4 months, as long as it is stored in a cool, dry, and well-ventilated environment.

Kraft Paper

Kraft paper is a popular choice for brands going for a natural, earthy look. However, it is sensitive to solvents, meaning coffee oils can soak through and cause grease stains over time. So, Kraft paper is often paired with a bio-film or recyclable lining. Without these liners, customers should be advised to transfer the beans to an airtight jar.

Reusable Tins

If your roastery adopts a refill system, these containers offer durability and a premium feel. When implemented well, they can help reduce single-use packaging over time and promote more sustainable consumption habits.

You can also offer small discounts for refills since packaging costs are lower, making it a simple yet effective way to attract and retain customers.

Tips For Designing Your First Sustainable Coffee Bean Packaging

When designing your eco-friendly coffee packaging, there are three factors you should know:

1. Functionality

Keeping coffee fresh is a core part of functionality, and adding a resealable design or sealing mechanism is the key to preserving it. You can opt for a zip-lock or tin-tie closure to help customers reseal the package after opening.

For better storage stability, a box-bottom or gusseted design lets the bag stand upright on shelves and makes it easier for customers to handle and scoop the coffee.

2. Aesthetic

The simplest way to reinforce your brand when adopting sustainable packaging is to use the material’s natural texture as part of the design rather than relying on overcrowded graphics. Kraft paper, for example, creates a “farm-to-cup” feel, while matte-finish bioplastics give a more modern and premium look.

When it comes to text elements, soy-based or water-based inks offer a softer, more organic color palette. You can also explore embossing or debossing techniques if you want to add texture and depth to your packaging.

3. Informational

Other than coffee notes or bean variations, you might want to include information on how to manage the packaging once it’s empty, using bold, easy-to-understand icons. This helps customers dispose of it correctly, whether it belongs in home compost, industrial compost, or plastic recycling.

If there’s space on the side or back panel, briefly explain why you chose sustainable packaging and what the material is made from. This adds transparency and helps customers feel more connected to your brand.

Looking at the bigger picture, sustainability in coffee roasting is a continuous commitment. Therefore, let your packaging be part of that journey, one that shows your customers you care about the coffee and the planet.

If you want to learn more about coffee roasting techniques and the coffee roasting business, check out our other articles. Or if you are looking for the right roasting machine for your roastery, speak with our team today!

The post Going Sustainable isn’t Complete Without Your Coffee Bean Packaging appeared first on Berto Coffee Roaster.

However, caffeine is not the only thing that sets decaf coffee apart. The roasting process also behaves differently, which is why coffee roasters need to understand the processing method and the bean’s characteristics before starting to roast. In this article, we will explore decaf coffee beans from the green bean stage all the way through to the roasting process. Let’s get started!

The Story Behind Decaf Coffee Beans

The man behind decaf coffee is closely tied to Ludwig Roselius. In 1905, he began investigating the health risks of caffeine, driven by the belief that it had contributed to his father’s death. This curiosity led him to explore ways to remove caffeine from coffee while preserving its drinkability.

His breakthrough came somewhat unexpectedly. While transporting coffee beans on a voyage, he noticed that the beans’ caffeine levels had been reduced after being soaked in seawater. This observation inspired him to experiment further by steaming the beans and using benzene (a chemical solvent) to extract the remaining caffeine. He later patented the decaffeination process, which marked the beginning of the global decaffeination industry.

Now, decaf coffee continues to grow steadily worldwide. Europe remains a leading market with over 35% of global revenue, while the Asia-Pacific region is the fastest-growing market due to rising awareness of caffeine’s health effects in countries like India, Indonesia, and Japan.

Decaf Coffee Process Methods You Should Know

Benzene, once used in the decaf coffee process, was replaced with safer alternatives after being identified as a carcinogen. Here are several decaffeination methods commonly used today and how each one affects the coffee.

Direct & Indirect Solvent Decaffeination

These methods use safer chemical solvents such as ethyl acetate or methylene chloride to remove caffeine.

• The direct method: coffee beans are first steamed to open their pores, then rinsed with a solvent that draws out the caffeine. Afterward, the beans are steamed once more to remove any remaining solvent, then dried and prepared for roasting.
• The indirect method: the beans are soaked in hot water to extract both caffeine and flavor compounds. The water is then separated and treated with one of those solvents to remove the caffeine before being returned to the beans to reabsorb much of their original flavor.

Water-Based Decaffeination

Also known as the Swiss Water Process, this method uses green coffee extract (GCE), a natural and solvent-free solution, to remove caffeine while preserving the coffee’s flavor compounds.

The beans are soaked in this extract, which removes the caffeine without taking away most of the coffee’s flavor compounds. After the caffeine is removed, the beans are gently dried using controlled airflow and low temperatures to maintain their moisture and overall quality. This method is also considered a more environmentally conscious option, as the used GCE is filtered through carbon to remove the caffeine and then reused in a continuous cycle.

Carbon Dioxide (CO₂) Decaffeination

A more advanced decaffeination method uses pressurized supercritical carbon dioxide (sCO₂) to extract caffeine from coffee beans. The beans are first soaked in water, then exposed to CO₂ under high pressure, where it acts like a magnet that attracts and pulls the caffeine out of the beans. After the process, the beans are dried and prepared for roasting.

This method is highly effective at removing caffeine while preserving the coffee’s flavor compounds, as CO₂ naturally only targets caffeine without affecting the carbohydrates and proteins in the beans. It is also considered environmentally friendly, as the CO₂ can be captured and reused in a continuous cycle.

Things to Consider Before Roasting Decaffeinated Coffee

Repeated steaming and soaking during the decaffeination process gradually change the bean’s structure, which makes roasting decaf coffee beans slightly different from roasting regular coffee. Here are a few things to keep in mind before you start:

1. Don’t Rely Heavily on Color

Decaf coffee beans often appear slightly darker or more muted in their green state than regular beans, due to their more porous and less dense structure. As a result, they change color much more quickly during roasting, even though the inside has not fully developed.

2. Roast Slower and Gentler

The porous structure and lower density of decaf coffee beans also cause them to absorb heat more quickly than regular beans. This means applying high charge temperatures or too much gas too early can increase the risk of scorching and tipping. As a general rule of thumb, lowering the charge temperature by 5 to 15°C compared to regular coffee is a good place to start.

3. Monitor the Rate of Rise Closely

Since coffee color is not always a reliable indicator with decaf, keeping an eye on the Rate of Rise (RoR) becomes your best guide. During the drying phase, aim for a steady climb after the turning point to build enough momentum in the roast. As you move into the Maillard phase, allow the RoR to decline gradually and smoothly, avoiding any flat or rising segments as these can often lead to roast defects.

4. Be Careful Around Second Crack

Pushing decaf beans into second crack can be tricky because the first crack is often very quiet or easy to miss. By the time you hear a clear pop, you may already be closer to second crack than expected. On top of that, their “leaky sponge” like structure causes decaf beans to release moisture and gases more quickly, leaving a very narrow window before they reach second crack.

For better flavor balance, it is usually best to end the roast shortly after first crack or just slightly beyond it to achieve enough development while avoiding harsh, overdeveloped notes.

5. Cool the Beans Quickly

Just like regular beans, decaf coffee beans need to be cooled down immediately after roasting to avoid overcooking from residual heat. Increase your fan speed right away and cool the beans as quickly and evenly as possible.

6. Lastly, Log Your Best Results!

Make sure to log your best roasts using notes or roasting software so you can repeat and refine your results over time. With Berto Roaster, you can achieve consistent and repeatable results in a single machine. It is built with BertoLogic™ and equipped with the features professional roasters need for precise and accurate roasting.

The machine can also be integrated with software like Cropster or Artisan, while Berto Type R Roaster offers more advanced features that let you record roasts directly on the machine using its built-in PID controller.

Connect with us today to learn how Berto Roaster can help your decaf roasts reach the quality they deserve!

The post What Coffee Roasters Must Know About Roasting Decaf Coffee Beans appeared first on Berto Coffee Roaster.

One common solution is using an afterburner in the coffee roasting machine, which helps break down harmful compounds before they are released into the air. In this article, we’ll take a closer look at how afterburners for coffee roasters work and the role they play in creating a more responsible roasting process.

How Afterburner for Coffee Roaster Works

The core principle behind an afterburner is secondary combustion, commonly known as thermal oxidation. Instead of releasing roasting exhaust gases directly into the air, the system redirects them into a dedicated high-temperature combustion chamber.

Inside this chamber, temperatures reach a high level to break down volatile organic compounds (VOCs), as well as smoke and odor-causing gases. These compounds are then oxidized into simpler, less harmful substances such as carbon dioxide (CO₂) and water. So, emissions become significantly cleaner, with reduced particulate matter and fewer harmful pollutants released into the atmosphere.

Main Components of an Afterburner

To get a clearer picture of how this works, here are the key components of an afterburner and how they support effective combustion and emission control:

• Burner
  The burner is responsible for generating and maintaining the high temperatures needed to break down pollutants.
• Exhaust Gas Intake/Inlet Duct:
  This part channels the smoke and coffee chaff dust directly from the roasting machine chaff collector/cyclone into the combustion chamber.
• Combustion Chamber
  As the primary component of an afterburner, the chamber is designed to retain heat and provide sufficient residence time for exhaust gases to fully combust.
• Exhaust Outlet (Chimney)
  This is the final exit point, where treated air is released after pollutants have been reduced through combustion.

The Benefits of Integrating Afterburner

Besides reducing volatile compounds and improving coffee roasting safety, an afterburner for coffee roaster also brings a range of practical benefits, including:

1. Maintaining Coffee Quality
   Since an afterburner minimizes residual smoke and odor in the roastery environment, the coffee roasters can perceive aroma development better and maintain greater control over roast profiles.
2. Reducing Operational Costs
   Cleaner exhaust from a coffee roasting machine means less residue building up in ducting and exhaust systems. This helps reduce the risk of blockages and minimizes the need for frequent manual cleaning. In some cases, using an afterburner can also lead to cost savings by reducing the need for more complex or oversized exhaust setups.
3. Supporting Sustainable Roasting
   As coffee roasting continues to evolve, adopting sustainable and eco-friendly practices has become an essential part of responsible operations. Proper emission management is one of these important steps that helps create a cleaner, more efficient roasting environment while reducing the impact on the surrounding community. It reflects a roastery’s dedication to long-term responsibility and conscious business practices, strengthening professionalism and reinforcing trust with customers and business partners alike.
4. Meeting Environmental Standards
   Air quality regulations in various regions require roasteries to manage the emissions they produce, especially when operating close to residential areas where odors can become a concern. Because of this, an afterburner for coffee roaster is often used as a solution to help meet environmental standards and prevent the risk of penalties or operational restrictions.

Different Types of Afterburners You Can Consider

Different types of afterburners are designed to suit varying operational needs, depending on factors such as roasting capacity and fuel consumption.

Traditional Afterburners (Thermal Afterburners)

Traditional afterburners operate at high temperatures to oxidize pollutants in exhaust gases, typically achieving removal efficiencies of over 95-99% for volatile organic compounds (VOCs) and odor-causing compounds. They are relatively simple in design and are known for their reliability and effectiveness. But the downside is higher fuel consumption because they operate at extremely high temperatures ranging from approximately 760°C to 870°C.

Catalytic Afterburners

Catalytic afterburners use a catalyst to operate at significantly lower temperatures, typically between 300°C and 400°C. This lower temperature requirement results in improved fuel efficiency and reduced energy consumption up to 60-85% compared to traditional afterburners. While they are relatively fuel-efficient, their performance depends on the condition of the catalyst, which may require periodic maintenance or even replacement.

Recuperative Afterburners

Recuperative afterburners have a unique working system as they not only oxidize pollutants but are also equipped with a heat recovery feature that captures thermal energy from exhaust gases and uses it to preheat incoming air. This makes them an ideal choice for large-scale roasteries that run continuous batch-to-batch processes, while still achieving high pollutant removal efficiency.

Berto Essential Air with Integrated Afterburner: Commitment to Safety and Sustainability

Berto Roaster is committed to supporting a safer and more sustainable roasting process, both for coffee roasters and the environments they operate in. This commitment is reflected in Berto Essential Air, which combines a hot air roasting method with an integrated afterburner to help reduce air pollution. The pure convective system supports a clean and consistent cup profile, while the built-in afterburner works to manage emissions throughout the roasting process. For roasting precision, the machine is built with BertoLogic™ that delivers unmatched accuracy from your very first batch.

With Berto Essential Air, managing emissions becomes part of your roasting process rather than something you have to deal with separately. Get in touch with our team today to experience a roasting process that focuses on quality and consistency, without compromising on environmental responsibility.

The post Why Every Roastery Needs an Afterburner for Coffee Roaster Machines appeared first on Berto Coffee Roaster.