Why Does Bottled Water Have An Expiration Date?

In this week’s Parade magazine columnist Marilyn vos Savant answered this very question from one of her readers. In one paragraph she did a nice job of addressing the issue. The Cliffs Notes version of her answer suggested that over time a bottle might break and leak, the water might develop an unacceptable taste and smell, and then finally, over time certain harmful chemicals in the plastic might leach out…