How old is the oldest drop of water?

Deep inside a mine in Canada, water gushes into a natural pool. ...
And scientists say it's 2 billion years old, so it's the oldest pool in the world.
Further up one had found already earlier a basin that one held for the oldest. ...
Scientists determine the age of the water by analyzing the gases trapped in it.

Can you drink 20 year old bottled water?

Frequently Asked Questions. How long can you keep bottled water? According to the US Food and Drug Administration, bottled drinking water doesn't require an expiration date. We recommend to use the standard best practices and to consume the bottled water within 2 years from the date of manufactured.