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Mr. Smalls is absolutely right. We have 100 years of technicians soldering, and I've never heard of one getting lead poisoning. One should wash your hands after handling lead solder. Each person viewing this site will have to decide his own priorities, when it comes to lead-free. Lead-free is the future. First, we only make one PCB. Any production of more than a few boards should be lead-free. This site is called "a reliable". As stated earlier, the military doesn't allow it because of "wetting". So if you are inexperienced in soldering, you should take into account that lead-free may not "wet" as well. To put this topic to bed, you've heard both sides, and I say, try to do lead-free, if you can.
Topic: "Wetting": In production, parts are sealed in air-tight bags, with a production date sealed in the bag, so it can't be changed. Product is opened and soldered the same day, because old parts develope an oxide coating, that impairs Wetting. We buy left-over parts, that could have spent years on the shelf. So if the component leads look dull, you could clean them just before soldering.
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