Sawdust Charcoal Briquette made from high quality sawdust material and widely used for BBQ where it has the longest burning time than other product Shape and Size As Requested Ash Content Max 5.0% Total Moisture Max 7.0% Burning Time 3 - 7 hours Fixed Carbon Min 79% Caloric Value >7500 Kcal/Kg Volatile Matter Max 13% Hardness Max 75%