The World Health Organization says that even water that’s been pasteurized (heated to 160°F for 30 minutes) is safe. That’s way lower than boiling. But let’s be honest: nobody has time to babysit a thermometer. Boiling is the Lazy Man’s Guide to Sterilization.
Irony alert: in some countries, people over-boil water out of fear, wasting fuel and time. You don’t need to boil it for 20 minutes unless you’re trying to concentrate the flavor of your tears.
How long you must boil drinking water to Kill Bacteria
What About "Boiled Then Cooled" Water?
Here’s a fun paradox: once you cool that boiled water, it can technically be re-contaminated by your dirty cup or unwashed hands. But that’s not the water’s fault—that’s you being a slob. The water itself is safe; your hands are the problem.
So, to recap: 1 minute at a boil = safe water. Altitude? Add minutes. Spores? Don’t worry. And if you’re prepping for the apocalypse, get a filter. Your boiling water won’t kill radioactive particles, but that’s a whole different horror movie.
