Does Water Ever Expire?
Have you ever wondered,Does Water Ever Expire? Have you ever left a glass of water out overnight, and it tasted terrible the next day?
Well if water was left in the glass and came in contact with air, absorb CO2 and a very small part of it is converted into carbonic acid. Then the reaction continues, and eventually water remains with reduced PH value, thereby changing the taste of it. Water collects dust from standing, which also has a small part responsible for the changing taste.
If left in the bottle for example, over time it can become home to algae and larvae of mosquitoes, explaining the Discovery News. That’s why bottled water has a shelf life.