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What's your solder of choice?
(images2.imgbox.com)
For questions about component-level electronic circuits, tools and equipment.
1: Be nice.
2: Be on-topic (eg: Electronic, not electrical).
3: No commercial stuff, buying, selling or valuations.
4: Be safe.
The smoke is from the rosin core and flux. Lead free is equally bad for the lungs.
I wouldn't eat after touching Lead though.