Will You Get Sick From Drinking Old Water?

"It Depends!" - Dr. Kellogg Schwab, director of the Johns Hopkins University Water Institute

Can we drink a bottle of old water?

Your drink will be filled with micro-organisms after you take a sip, as your lips and mouth introduce micro-organisms into your H2O.

Combined with the ambient temperature in your office or home, and sunlight streaming into your windows, those micro-organisms will be multiplying pretty quickly.

If you have clean water from the tap in a clean glass, it'll be fine for a day or two, because the chlorine additives will kill the small communities of micro-organisms.

But if you ever leave a sip of day-old glass water beside your bed or on your desk, and it tastes funny. It is because the oxygen content in the water has become carbon dioxide due to the presence of micro-organisms, which slightly lowers the pH value. 


Here's the source: Time
Summarized by Ooze94

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