1. Machine-made charcoal

, also known as machine-made charcoal, firewood stick, artificial charcoal, regenerated charcoal and smokeless clean charcoal, is made of wood residue or sawdust, with good burning time and calorific value.

2. Fruit charcoal

is made of fruit wood as raw material by charcoal burning to 7%, and then sealed with soil to automatically extinguish the open flame in an oxygen-deficient environment. Generally, apple trees are the main ones.

3. White charcoal

After carbonized in a charcoal kiln, it is burned in the air for a while for high-temperature charcoal refining, and then it is quenched with wet sand. Because of the high carbonization temperature of white carbon, its carbon content is higher than that of ordinary black carbon, and its combustion time is longer than that of black carbon.

4. Reserve charcoal

Reserve charcoal is made from oak of official trees in Wakayama County, which is steamed at high temperature.

5. New charcoal (miscellaneous charcoal)

It is made by carbonizing crop wastes such as branches, leaves, peanut shells, rice husks, weeds, cotton stalks, corn stalks, bagasse and leaves, reed stalks, grass, bark, rattan, distiller's grains, and biomass combustible materials into charcoal.

References: mechanism charcoal-Baidu Encyclopedia

fruit charcoal-Baidu Encyclopedia

white charcoal-Baidu Encyclopedia

long charcoal-Baidu Encyclopedia

new charcoal-Baidu Encyclopedia.