Here’s the good news: water at a full boil (212°F or 100°C at sea level) is a murder machine for most microbes. According to the CDC and every paranoid survivalist, one minute of boiling at sea level kills bacteria, viruses, and protozoa. Yes, just sixty seconds—shorter than a TikTok dance.
If you’re camping up a mountain, though, the water boils at a lower temperature. For every 1,000 feet above sea level, add one minute to the boil time. So at 5,000 feet? Boil for six minutes. It’s the only time altitude makes things slower instead of giving you a nosebleed.
A Quick Reality Check on "Killing"
You don’t need a rolling apocalypse. Water is sterile when it hits 160°F (70°C) for a few seconds, but we stick to boiling because it’s obvious—you see bubbles, you feel safe. Think of it like putting on pants: you could technically survive without them, but why risk the awkwardness?
Here’s a surprise: freezing does not kill bacteria. It just puts them to sleep. Boiling? That’s a proper eviction notice. They don’t get a lease extension.
