Do you guys melt your lead in stainless steel or iron pans? I was cleaning the iron pan with a copper scrubber, and noticed this black powdery junk that must be coming from the pan itself. I suspect that this is part of my contamination issue, as some of the junk in my bullets are little black specks.
Also, when I flux with wood, it seems like there's this black powder under the lead pool that I cant seem to get cleaned up entirely before I pour it into the ingots. How do I deal with this potential contaminate?