Since I don't stack them, for my over burning wood kettle and copper frying pan (they are tinned so even if I had nesting sized pans they couldn't go in each other bare) I simply made thick linen sacks to fit them in and leave the residue on the outside of the pans. If the tar starts to come though ill just chuck the bags in the washer. Saves the extra work.
ATB
Tom
It ain't how hard you work it is how smart you work, I like it.