Becaware of the dust involved with handling dross. Most of my dross was actually pretty rich in tin and lead. I reintroduced it to the pot and fluxed well. What I skimmed was then tossed onto hardware cloth insert in a metal bucket. Waste went thru and copper remained on the screen. I haven't tried selling it yet. The pass through dross also made lead plates that could be picked out and reused. Greatly reduced the waste.