Charcoal burning method

1. Kiln burning method: build a kiln with mud, fill it with wood, and burn it from the kiln door or fire door, so that the wood will carbonize in the kiln, volatiles will escape and charcoal will remain;

Second, dry distillation method, that is, wood dry distillation method. According to the fire extinguishing methods of kiln, there are two kinds of black charcoal and white charcoal.

Brief introduction of charcoal kiln: There are many kiln forms and structures, such as Zhejiang kiln, carp kiln, wooden ladle kiln, Hunan wooden kiln and Sichuan wooden kiln, fast iron kiln and machine kiln. Usually, the method of extinguishing in a closed kiln is called kiln extinguishing, and the obtained carbon is called "black carbon". After the wood is carbonized in the kiln, it is pulled out of the kiln while it is hot, and then the method of extinguishing the fire with wet sand is called the method of extinguishing the fire outside the kiln. In the process of flameout, charcoal is calcined when it comes into contact with air, and the outside of charcoal is oxidized, resulting in white ash attached to charcoal, which is called "white charcoal". White charcoal is harder than black charcoal.