| Charcoal Type | Main Material | Production Method | Burning Time | Calorific Value | Fixed Carbon Content |
|---|
| White Charcoal (Binchotan) | Coffee wood, Eucalyptus wood, Lychee wood, …. | Carbonization from fresh firewood up to 1000 degrees C or higher Take the charcoal out of the kiln and cover by sand to extinguish the fire | 4 – 5 hours | >7800 kcal/kg | 92% |
| Softwood Charcoal | Eucalyptus wood, coffee wood,… | Carbonization from fresh firewood at 400-700 degrees C Close the door and chimney completely, let the charcoal furnace turn off and cool down naturally. | 3 – 3.5 hours | 6700 – 6800 kcal/kg | 64-67% |
| Hardwood Charcoal | Khaya wood, lychee wood, mangrove,… | Carbonization from fresh firewood at 400-700 degrees C Close the door and chimney completely, let the charcoal furnace turn off and cool down naturally. | 3 – 4 hours | 6700 – 7300 kcal/kg | 64-76% |
| Coconut Charcoal | Coconut shell | Carbonization from coconut shell at 400-600 degrees C. Cool down naturally in the kiln or by water. Grinding into powder and mix with starch and water. Moulding charcoal mixture into different shapes and drying at 150˚C to 200˚C | 2 – 3.5 hours | 7000 – 7600 kcal/kg | 70-80% |
