woodcoal

Woodcoal, also called charcoal, is a lightweight, carbon-rich fuel produced by heating wood in the absence or reduction of air. It has long been used as a fuel and reducing agent in metalworking and for cooking.

Production methods include traditional earth kilns, earthen pits, and modern retort kilns. Wood is heated at elevated temperatures with limited oxygen, driving off volatile compounds and leaving largely carbon, along with ash. Modern briquettes may include binders and other additives.

Two common forms are lump charcoal, made from solid pieces of wood, and briquettes, compressed charcoal dust with binders and sometimes fillers. Lump charcoal preserves wood’s natural structure, while briquettes offer uniform size and consistent burn.

Woodcoal typically has a high fixed carbon content, low volatile matter, and low ash, which yields clean, steady heat and a distinctive aroma. Its energy density and burn characteristics depend on feedstock and production method.

Uses include grilling and barbecuing, where its flame and aroma are valued; in metalworking as a reducing agent in traditional blacksmithing and glassmaking; and in filtration or purification contexts in some applications.

Environmental considerations include sustainable sourcing of wood and efficient kilns to minimize emissions. Burning charcoal releases carbon dioxide and other pollutants; modern kilns aim to improve efficiency and reduce smoke. Safety concerns include CO buildup in enclosed spaces.