What is the shelf life for bottled water?
Bottled water is considered to have an indefinite safety shelf life if it is produced in accordance with CGMP and quality standard regulations and is stored in an unopened, properly sealed container.
Does the FDA Require an expiration date on bottled water?
The FDA does not require an expiration date for bottled water. However, long-term storage of bottled water may result in aesthetic defects, such as off-odor and taste. Bottlers may voluntarily put expiration dates on their labels.
Source of this information: http://www.fda.gov/Food/FoodSafety/Product-SpecificInformation/BottledWaterCarbonatedSoftDrinks/ucm077079.htm
How to save a bottle ‘gone bad’?
If you have an old bottle of water that was produced in accordance with CGMP and quality standard regulations and has been stored in an unopened, properly sealed container but the water has an odor or tastes off, try a squirt of Nixall™ in the water to clear the smell and get the taste back!