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How risky is drinking stale water?
Asked by longgone (19535)
May 13th, 2015
A friend of mine took a sip from a glass water bottle today. The bottle had previously been opened, then left outside for a few months.
This led to a discussion on the risks of drinking stale water. Do you have any info, any helpful links?
Bonus question: Does it make a difference if the bottle has been in contact with a human’s lips before?
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