Question
How long after opening is bottled mineral water no longer advisable to drink?
Answer
Generally speaking, bottled mineral water can last up to a year when unopened, and one month for bulk barrels. However, once the bottle is opened, it no longer benefits from these expiration dates, and it is recommended to consume the water as soon as possible. After opening, exposure to air may allow bacteria from the environment to cause the water to spoil, so it should be consumed as soon as possible and not left out for too long. Ideally, it should be consumed on the same day. Opened mineral water or tea should be avoided the next day if possible, as prolonged exposure to air may affect the quality of the drinking water.