I've had my BGE almost two years and love it. But there seems to be
a lot of black stuff accumulating on the back side of the dome top. I suspect it is due to the way I kick back the solid lid during part of the cooking process. I thought I could just wipe the stuff off. Not! In fact, I don't think it will come off with a hammer and chisel. I think it gives my BGE that well used (and much appreciated) look but I would like to clean it up a bit from time to time. Any suggestions.