Boiling Water for Drinking: How Long Is Necessary?
Quick answer Boil water vigorously for at least 1 minute to kill most pathogens. Extend boiling time to 3 minutes at elevations above 6,500 feet. Use a rolling boil, not just a simmer. Let water cool before drinking. This method kills bacteria, viruses, and protozoa. Always use clean containers. What to check first (do this…