Our coconut shell charcoal is sourced from the finest coconut shells grown in Sulawesi and Maluku, Indonesia. The followings are our product's specifications: - Natural size, pass through mesh 10 max - 3%, no shell, stone or foreign material - Moisture max 15% - Ash max 3% - VM 8% - 15% (Less than 8% - more than 16% were found to be unqualified)