Made from natural materials which is coconut shell charcoal and small portion of natural starch as binder, we produce eco-friendly coconut charcoal briquette that perfect for use in Shisha/hookah. ash content : 30% max moisture of content : 7% max volatile meter : 16% max fix carbon : 85% calorific value : 7400 kcal/kg ignition time : 10 minutes glowing time : 2 hours