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Feb
19
comment How long does water need to be boiled for to kill all bacteria / viruses?
I added the rest of the quote, since they do say to boil longer at higher altitudes.
Feb
19
comment How long does water need to be boiled for to kill all bacteria / viruses?
@Greg.Ley, no. As shown by this graph linked by Graham, different pathogens die at different temperatures (and various times at that temperature). No mention is made of altitude or phase change, and most temperatures are far lower than sea-level boiling point. Of course, boiling at sea level for sufficient time is one way to achieve those times and temperatures.
Feb
19
comment How long does water need to be boiled for to kill all bacteria / viruses?
+1 for mentioning the altitude issues. Water boils at decreasing temperatures as altitude increases, but that doesn't mean pathogens die at those lower temperatures.