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No doubt this guy in this video made some awful, over-roasted charcoal, but the rig shows promise. I really like the use of the thermos as an insulated chamber. With some tuning of the heat control (thermocouple probe and variac for the coils maybe?) you could probably get this slowed down to a more reasonable six-to-eight minute roast before first crack.

John Edgar Park

John Edgar Park likes to make things and tell people about it. He works in CG animation at DisneyToon Studios and writes for Make, Boing Boing, and other places online and in print. You can find him at and twitter @johnedgarpark — if you like that sort of thing.

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