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Choose one of the ten pre-set programmed roasting profiles. Gemma will start the pre-heating cycle. When it reach the right temperature based on the roasting profile chosen, a warning sound will notify you to release the green coffee beans inside the drum. It will take approximately 20 to 25 minutes until you will hear another sound warning you that the roasting is finished, and coffee is cold ( Gemma cools the coffee inside the drum).
It depends on the selected roasting profile, a full cycle will take 20 to 25 minutes from start to finish for a 4.5 lbs batch of coffee to be roasted.
The Gemma PLC has pre-set roasting profiles that can be changed/modified at any time based on your needs.
You can roast any variety of green coffee beans and create many profile as you wish.
Gemma Micro Roaster is UL & NSF Certified, meaning that is complying with Health Department requirements. No other permits are necessary because the machine is electric, with 220V/60Hz Voltage,