“very impressed with the large chunks. no spitting on lighting in the chimney and very little black smoke. burned well and hot, 6 chunks in the weber MasterTouch ( half the bbq filled to have direct and indirect heat sources) to cook 30 burgers and some chicken with heat still left over. well over 1 hour of cooking time with a single load. on par with the top companies like Big K brown bag lumpwood and Weber lumpwood.highly recommended.”