How to Roast Green Coffee Beans

Roasting green coffee beans

When roasting with a Hot Air Popper, the key is to find the amount of coffee beans that contains enough heat to roast. As a rule, you should start adding coffee beans to the preheated roaster until the beans hardly move (remain liquid). Per tip: Buy two pounds raw to get one pound roasted. Professional tip: Use a popcorn popper or iron pan to save money. You need to know something about the coffee bean itself before you can start roasting.


The coffee roast at home is as funny and simple (or as sophisticated and technical) as you want it to be. Roast in your stove, use a pan, reuse a coffee spoon or buy an original coffee roaster. Whichever way you use, you will be on your way to a much better coffee.

With the help of warmth, green, uncroasted coffee becomes toasted coffee. Roughing time varies according to methods and lot sizes, but you can assume that the whole procedure takes about 10 min for smaller lots and about 16 min for bigger one. More about the Roastings.

Coffee can be toasted in many ways. Which way you use should depend on how much roast coffee you need and how much you want to use. The latter roasting techniques are less uniform and need a certain amount of roasting techniques to achieve good results, so we suggest the use of the so-called the so-called popping process.

A device offers you a built-in time switch, a possibility to gather bird droppings and (depending on the model) a certain amount of regulation of the water temp and the outflow. Toasters take less than 10 min, roast very evenly without singeing and are better suited for small quantities of coffee. Benefits of barrel roast include bigger lot sizes and uniform roast, but these equipment requires more care and generates more smok.

You will find further help in the search for the right roasters in our FAQs on the subject of home roasts. Coffee varieties are selected to help you get to know the great taste variations between the different areas and to achieve a relatively even roast. Check out our regional information and coffee offers to find out which coffee you would like to try next.

For more help, our Green Coffee FAQ will help you uncover the secret of your choice. The different roasting phases will help you to check the taste of your mug and to appreciate how different roastings lead to different flavours. In the first few moments the beans remain herbaceous, then they become paler yellow and smells herbaceous.

Beans begin to evaporate when their inner moisture dissolves. - (?) First crack: You will soon be hearing the first crackle, an acoustic click when the actual roast begins: sugar begins to caramelise, bonded moisture leaks, the texture of the coffee beans collapses and oil migrates out of its small bags.

  • Stage 1: roasting: Once the first tear has occurred, the roast can be regarded as ready at any moment according to your tastes. Crackling is an acoustic sign and, together with seeing and smelling, will tell you what state the roast is at. It' they call that toast. Caramelisation goes on, the oil migrates and the beans expand when the roasting becomes black.

With the roasting this is a city + roast. The majority of our roasting suggestions stop here. If you' re at the edge of the second rift, this is a full city roast. - A second rip: At this point a second rip can be detected, which is often more fleeting than the first.

At this point the roasted nature begins to darken the original nature of the beans and is also called Viennese roast. Some jumps in the second tear is a full city + roast. Toasting through the second tear can lead to small bits of beans being removed like chips!

  • Blacking out roast: As the roast becomes very deep, the fumes are more stinging, as the sugar burns entirely and the texture of the beans decays more and more. When the end of the second tear is nearing, you will receive a roast in France. After all, the sugar burns entirely and the roast only leads to a thin liquefied mug of" wood coal water".

Allow the coffee to cool for 4-8 h in a loose-sealed coffee jar or coffee storage. You can of course always have your coffee after roasting, but for the best taste and peace of mind it is best to let the coffee out of the CO2 toaster. If you don't think you will be making toasted coffee in the next few weeks, you can keep it in the fridge.

Raw coffee is best kept in the polythene bag in which we send it and kept in a cold, arid place to make it last longer.

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