Drum Drying Process

Drying stage typically lasts 4–8 minutes with traditional drum roaster (see below for roaster designs). The temperature in the end of drying stage is typically 160 ⁰C. Especially with drum roasters, you need to be careful so that you do not burn the beans by having too much heat in the start. The drying stage is also important for collecting energy for the bean because the last stage of ...

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