Hardwood lump charcoal. Features extra large average lump size for maximum performance. 100% ultra-dense Quebracho Blanco Axe-breaker hardwood. No spark, pops, or flare-ups. Produces minimal ash and no heavy smoke. Award winning flavor profile. 1100 degrees Fahrenheit+ maximum temperatures with 20+ hour smoker or 4+ hour grill burn time. Superior yield, and reduced refueling and maintenance.