You did this with only the coal chimney?
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Proof of concept batch looks good. This stuff crumbles like glass. I ran it through a old coffee grinder and made a fine powder I added to my worm bin.
Obviously I only made a small amount so now need bigger containers or just more of them.

Discussion
Two soup cans and a charcoal chimney
Soup cans just to hold things in place?
No. I filled a soup can with sticks. Used plyers to bend inward the edge of the second soup can. Fit them together to form a air tight container to burn the wood in the absence of oxygen. Poked a hole in the top with a nail and burned it in a fire. You don't have to use a charcoal chimney but makes a nice container for it and as a turbo stove gets super hot with little fuel
Ah ok thank you I’m gonna have to try this out
