Water doesn’t go bad for years.
But, what actually constitutes “old” water?
Is it water that’s been left stewing for days, weeks, or months?

Or does overnight water pose a potential risk to us, too?
However, since it’syourbacteria, you likely won’t get sick from it.
But sharing bottles with other people is not advised, for obvious reasons.

Just pour it into a cup or pour it directly into your mouth."
Start paying attention to those expiration dates, too, because they really do matter.
