Roaster Buying Guides

And No, You are Not Going to “Blow Away” your Coffee’s Flavors Airflow in coffee roasting has always been somewhat misunderstood. Many newer roasters worry they will “push out” flavors if they turn the fan on too high, while others underplay its importance altogether. The reality is much more practical: airflow is primarily about creating a clean, stable roasting environment. Let’s break this down across 5 important areas. Why You Need Airflow When Roasting Coffee The roasting drum is an…

When coffee is being roasted, it loses moisture, increases in temperature, changes color, and starts chemical reactions that create the magical flavor developments (until you decide to rapidly cool the beans & stop most of those reactions) – All of this is driven by the energy applied onto the coffee beans in the form of “heat”. So, it is safe to say that if you master heat transfer, you’ve already mastered coffee roasting at its essential core. During the process,…

When it comes to starting (or expanding) a coffee roasting operation, one of the first and most important decisions you’ll face is selecting the right roasting machine. Beyond brand, fuel source, or tech features, *capacity*—the size of coffee batches a roaster can handle—is a foundational choice that can shape your workflow, flexibility, and business growth. In this article, we’ll break down why roasting machines come in different capacities, look at the most common sizes available today for specialty coffee roasters,…

Contents Conduction, convection, and radiation. Anyone trying to learn coffee roasting probably already stumbled across numerous contents about how these three different methods of heat transfer are utilized during coffee roasting. Once having gone through one or two blog posts or some forum discussions, one should quickly notice that the majority of these contents are focused on “conduction v.s. convection”, “the best way to maximize convection on a certain brand/kind/model of roaster”…etc. Through all this time, although it might be…

What is a Differential Pressure Manometer? A differential manometer is a device that measures the differential pressure between one end to the other end. Installing the manometer sensors in the exhaust pipe enables us to measure the differential pressure between the inner and outer of the roaster drum. The unit for pressure is the pascal (Pa). Pressure manometers can be generally categorised as mechanical manometers and electronic manometers: How does Differential Pressure cause? Exhaust Hot air roasters generating the hot…

Blog Coffee Roaster Automation:The 4 different levels of automation nowadays & 3 things to consider before deciding which one to buy You have finally decided to start your own coffee business. Congratulations. After deciding the ideal espresso machine, the best-tasting grinder(s)……etc., you now decide to take a good look at one of the cornerstones of a great coffee shop: the coffee itself. If you decide to take matters into your own hands, you might already be looking for a coffee…

With the rising popularity of specialty coffee in global market, many people aim at the market of pour over specialty coffee which also brought up the trend of fresh roasted, fresh ground and fresh brewed coffee. However, speaking of a good cup of coffee, it all starts from the very first step, roasting. There are so many coffee roasters on the market, and every manufacturer has been constantly making innovation. Then, how should the beginners, the veterans and the owners…