Bottled water has an expiration date. To be more precise, the expiration date is for the bottle itself, and not the water. This is because, over time, the plastic will start leaking into the water.
100 Mind-Blowing Expiration Facts
The expiration dates on a bottle of water are not for the water. The expiration date is for the bottle itself. After some time, the plastic will begin to leach into the liquid.