Coconut charcoal briquette is compact block charcoal that made from coconut shell charcoal.. as a fuel, it is hotter and last longer than ordinary charcoal. origin : Mid Java ( Indonesia) Ash content : 1,8% - 2,5% moisture : 5% maximum volatile matter : 15% maximum fixed carbon :75% -78% calorie :7500 - 8000 NO ODOR burning time : 2,5 hours maximum