Our charcoal briquette is made of 100 % granular coconut shell charcoal that is crushed and moulded using a natural binder. As fuel, it is easier to ignite, hotter and the product lasts longer than ordinary charcoal. Specification: Long burning (120-150 minutes), no smoke, no spark, and no odor. 1. Super Premium: Material 100 % Coconut Charcoal. Calorie value: 7000-7200 kilo calories. Volatile matter: 14.5 % max Ash content: 1.8-2 % White ash Fixed carbon: 80 % min 2. Premium: Material 100 % Coconut Charcoal. Calorie value: 7000 kilo calories. Volatile matter: 16 % max Ash content: 2.3-2.5 % Greyish white ash Fixed carbon: 75 % min 3. BBQ Grade: By Request. Usually 50% Coconut charcoal, 50% wood. Sizing per cube: Can accept custom sizing. (Usually 25x25x25 mm = 72 pcs/kg)