Dropping a few drops of iodine or bleach into water is like calling in a chemical airstrike on germs. For iodine, use 5 drops per liter (or 25 drops if the water’s colder than a polar bear’s toenails). Wait 30 minutes. The water will taste like a swimming pool’s bad attitude. But you’ll be alive.
Bleach works, too: 2 drops of unscented household bleach per liter. Mix it, wait 30 minutes. If the water smells faintly of chlorine, you’re gold. If it smells like a laundromat, you used too much. Don’t drink bleach soup, you magnificent idiot.
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Fun fact: Iodine kills viruses well but doesn’t eliminate giardia cysts totally. So if you’re in beaver country, boil or filter instead. Otherwise, you’ll be hosting a microscopic rave in your colon.
