"I've never heard of anyone with access to salt water making their own salt. Could I just keep a slow simmer pot going for a few days to get salt?" wonders Goldendog. It's absolutely doable, say hounds. "The traditional method is to isolate sea water and let it evaporate naturally. No point in running the stove or the oven," says alanbarnes. "Get a cookie sheet or a hotel pan or a kiddie pool full of ocean water and let the subtropical heat do its thing."
However, DIY salt-making is a project that should only be motivated by the joy of the process, not for quality of the salt or economic considerations. danieljdwyer figures a gallon of sea water would yield around a third of a pound of salt, or "about $0.35 worth," he says. And good, expensive sea salt usually comes from deep, cold water far away from human habitation (and consequential disgusting pollution). You're not going to get high-quality, pure sea salt from beach water in Florida, unfortunately. "I wouldn't use any water that isn't from way out in the Gulf, frankly," says alkapal.
Discuss: Making your own sea salt?