The size of black charcoal is minimal 3cm in diameter and has minimal 5 cm long. For white charcoal, we make from hard wood and a kind of mangrove. It' size minimal 1,5 cm in diameter and has minimal 5 cm in lenght. Our product (black charcoal) was burned in kiln (capacity 1 ton) for about 5-7 days. For white charcoal, the wood was burned with iwate kiln for about 2-3 days. 15 Kg, 25 Kg.
