There are many reasons why water tastes stale when it is kept for a long time. Microorganisms play a big role in this phenomenon. When they grow, they release chemicals into the water from their metabolic activity. This evaporates over time, so the absence of it from water left out for a long period brings about a change in taste.
PTELook at the text below. In 35 seconds, you must read this text aloud as naturally and clearly as possible. You have 35 seconds to read aloud.
Recorded Answer
Current status:
Beginning in 35 seconds.