Mountain Valley Spring Water does not have a strict expiration date, as it is a natural product. However, it is typically recommended to consume the water within two years of the bottling date for the best taste and quality. Proper storage conditions are essential for maintaining the water's freshness. It is advised to keep the bottles in a cool, dark place, away from direct sunlight and extreme temperatures. Over time, while the water itself remains safe to drink, the plastic or glass packaging may impact the taste and quality if stored improperly. For specific information regarding the shelf life of a particular bottle, it is always a good idea to check the packaging for any recommended guidelines. For more details, visiting the current Mountain Valley Spring Water Company website may provide additional insights.