This is an overview with demonstration of my homebuilt coffee roaster. It is a custom build based on a “Bake-a-Round“ pyrex tube. Power is from a 3400w plastic welding element and the blower is a 1hp unit from a jacuzzi tub.
Control is by Arduino, using a max6675 thermocouple interface and a homebuilt zero cross detector circuit.
Roasting software is Roastlogger
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