Pure, 100% all natural charcoal that burns hot for that great seared-in wood smoke flavor. Signature Royal Oak 100% all natural hardwood lump charcoal is great for all grills and smokers, including kamado and ceramic grills. In its natural lump shape, this pure charcoal comes from renewable oak, hickory, maple and walnut hardwoods with no chemicals or additives. It burns hotter and sears meat beautifully, locking in those juicy flavors while producing a great smoky taste. Now you'll be ready to cook in about 15 minutes.