Primitive Technology: How to Make Charcoal with Pyrolysis
Adam Rifkin stashed this in How It's Made
Mesmerizing.
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Top Reddit comment:
If anyone is curious to how this works it's a process called pyrolysis, i.e. decomposition of organic materials at high temperatures while limiting exposure to an oxidant halogens to limit combustion.
2000 Reddit comments:
https://reddit.com/r/videos/comments/46n5ij/making_charcoal/
8:29 AM Feb 20 2016