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Why Does Bottled Water Have an Expiration Date?

Why Does Bottled Water Have an Expiration Date?

Water is a consumable food product, and as such, it is subject to laws requiring expiration dates on all consumables, from bologna to lemonade. Besides that, the expiration date on bottled water has certain benefits for the manufacturer

  • The plastic bottle which water is contained in does "expire", and will eventually start leaching chemicals into the water. This won't necessarily render the water toxic, but it might make it taste somewhat less than "mountain spring fresh".

  • Furthermore, many companies bottled water use the same machines to bottle sodas and other beverages which do expire and should carry an expiration date. It's easier and more efficient to simply put a stamp on all the bottles (whether needed or not) rather than dedicating a special machine just for bottled water.

  • Finally, expiration dates are usually only one element of a printed code that also identifies the date, bottling plant, and other information. Even though the expiration date itself is meaningless in terms of water going bad, the manufacturing information could be useful in tracking down contamination, bottling errors or product recalls.

  • Reverse Osmosis Water has no expiration date as the water is filtered from your water supply and stored in a localized tank.  You control when the filters are changed in order to keep your water crystal clean, clear and fresh. The cost is only a fraction of a yearly bottle water user.


J. Le - Jul 07, 2016

Very interesting!

Marc Menard - Aug 10, 2016

The cost is the thing that brought us to the purchase of the system in the first place. We were buying water by 5 gallon containers to be used in a water cooler. Couple of problems with that: I’m not getting any younger. So my back is rather… fragile shall we say? And lifting a 5 gallon tank up and drop it into the cooler was getting dangerous for me. Plus, even though a single big bottle like that is “only” 5$ (Canadian), over time they add up. We estimated the cost over a year to be a little over 120$. It’s not huge, but compared to a set of filtering cartridges, it’s expensive. Plus, I’m a CPAP user, and this water works perfectly with it. So, to me, it’s a no-brainer. We use it for everything, from coffee in the morning to cooking and all. The only place where I don’t use the filtered water is for winemaking. It would take too much time to get a 5 gallon jug filled up when I’m making wine, and I’m not that patient. Cheers for a nice system.

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