3.1 Moisture content
Moisture content of the charcoal produced from Keteleeria davidiana was the lowest with the value of moisture content of 0.76%, while the highest value of moisture content was 3.17%, which was the charcoal produced from Sindora siamensis, as for moisture contents of charcoal produced from Pinus
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merkusii, Pterocarpus marcocapus, Cratoxylum cochinchinense, Pettophorum dasylachis were 2.07%, 2.66%, 2.81% and 2.85%, respectively and moisture content of briquette charcoal was 1.88% as shown in figure 1.