I find small rocks in all brands of lump that I have tried. It doesn't bother me as I know the process. I prefer a couple of stones to raw bark that just flames and is gone. At least the rocks (pebbles really) retain heat.
Backyard Disasters are my specialty. “I do not agree with what you have to say, but I'll defend to the death your right to say it.”
"Tushka" The Black Warrior 24 x 50 offset by TuscaloosaQ, "Libby the Lion" L5000 gasser, and "Vanessa" my Vision Kamado Pro III & "Ruprecht" my Weber Gold OTG
Member KCBS, FBA
Pitmaster at "Sultans of Sting" BBQ Team it's a French thing!