If you’re at sea level: Boil for one minute after a full, rolling boil. That’s it. If you’re above 6,500 feet (2,000 meters): Go for three minutes. Set a timer. Don’t guess.
And if the water looks gross? Filter it first. Then boil. Then drink. You’ve got this.
One last thing—a little confession from me to you.
I once boiled water for 45 minutes because I forgot about it. My pot turned into a dry, sad, burnt piece of art. The water was “pure.” The pot was not. Don’t be like me.
Set a timer. Grab a coffee. And remember: boiling water is simple. It’s the forgetting that gets you. Cheers, friend.