That's why you make the big bucks , huh buddy. Well Kees I did a little experimenting today. When I held the bernzomatic on one of those pieces of slag, there were pretty little silver, shiny drops falling into the pan. So here's what I think happened. My pot quit heating several minutes before I placed those pieces in. The molten lead remaining in the pot was getting cool. When those pieces of cool lead were put in, the other lead in the pot cooled even quicker, forming that ugly slag in the picture. Thanks for everyone's help.