Hardwood charcoal is made from natural wood. The charcoal consists of less moisture and about 80-85% carbon which means less smoke and longer burning time of up to 3 1/2hrs. Quality control team priorities customers satisfaction, which means you get quality for money. QUALITY SPECIFICATIONS. Ash content.................. 3.6% Fixed carbon.................. 75% Length............................. 3cm/28cmm Shap................................. Irregular Origin............................... Nigeria