Primitive Technology: Reusable charcoal mound

Turn on captions for written commentary (CC in bottom right corner of screen). Charcoal is a valuable fuel that reaches a higher temperature than the very wood its made from. Ive made some before, but with supplies running low due to furnace experiments, I decided to make another large batch of charcoal in a mound. I stacked the wood into a roughly conical shape (about 1 m wide and 75 cm high) and then built a thick wall of mud around the heap (this took 6 hours). Eight air entries were made in the base