Actually, it does NOT need to boil. It needs to reach around 200 degrees, which kills everything. If it were in a strong enough pressure vessel, it might not boil until 220 or so.

Boiling is just any easy way to see if it the water is pasteurized yet.
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-IronRaven

When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.