The smoke you see while working with solder is from the flux, not the lead. Lead doesn't vaporize at the temperatures soldering exposes it to. Just don't put t

The smoke you see while working with solder is from the flux, not the lead. Lead doesn't vaporize at the temperatures soldering exposes it to. Just don't put the solder in your mouth and wash your hands. Here is one stack exchange answer that seems well researched to me: https://electronics.stackexchange.com/a/19086 https://electronics.stackexchange.com/a/19086 I also did a lot of googling on the subject recently when I decided I wanted to try out Stained glass, but wasn't sure what precautions I should take. I've come to the personal conclusion to not stress about the lead in solder.