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Yobot: Precision Fermentation

Build your own smart yogurt maker.

BY CHRIS REILLY

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Photograph by Sam Murphy

I’m lazy. My impatience often leads me to botch important steps when I make yogurt. So to get better control over the fermentation process, I made a crockpot thermostat attachment to precisely control the temperature.

You can buy electric yogurt makers, but most of them only incubate; the heating/sterilization step still has to be done on the stovetop. I wanted to experiment with Arduino microcontroller programming and electronic circuit design ...

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