Okay, now the serious part. Boiling is the gold standard for killing bacteria and viruses. Bring your clear-ish rain to a rolling boil for at least one minute (three minutes if you’re at high altitude—science, baby!).
Let it cool, and boom: you’ve got sterile water. It tastes a little flat, so add a pinch of salt or swish it in a bottle to reintroduce oxygen. Fancy, huh?
The Microwave Cheat
Yes, you can boil small amounts in a microwave-safe container. Just be careful not to superheat it (that’s when water explodes in your face—not fun). Use a chopstick to break the surface tension. You’re welcome.
