The fact is, with a water temperature of 165 degrees F (74 C) it takes just half an hour for all disease causing organisms to be inactivated. At 185 degrees this is cut to just a few minutes. By the time water hits its boiling point of 212 F (100 C) the water is safe. Even at high altitudes the time it takes for the water to reach a rolling boil and then cool means you can safely drink it.
How Long Do You Need To Boil Water?
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