The charcoal brazier is used to create charcoal in batches of 300, using approximately 375-390 wood (experienced user). It is the next step in the technological progression from Charcoal Oven. You cannot use a brazier unless you have the skill Science of Charcoal.
See the charcoal guide for detailed notes on the operation of the oven, or the bonfires page for charcoal-making the bonfire way.
Cost:
Built: in a compound, uses 29 x 11 cells
Skill/Tech required: Science of Charcoal