Saffire’s 100% Natural hardwood lump charcoal is not compromised of any additives like coal, etc. , & contains more dense hardwoods than others. With mesquite, oak & Hickory, it is not only great for flavor but will burn longer than a similar volume of most other brands. That’s especially good when roasting or slow smoking for many hours. Because the natural chunks (lumps) of wood are not pressed into dense briquettes they light much easier with just a small fire-starter or electric fire-starter. Start time is only 10 Min For low temperature smoking & 15 to 20 Min For high temperature grilling.