Why do water bottles have a "best if used by" date?

Question

i didnt know water goes bad..?

Answer 1

chemicals in the plastic!

Answer 2

There are several reasons for an expiration date on a bottle of drinking water. Some states require that every food item has an expiration date, so even candy or nuts and other perishables may have them. The other reason is the taste. As long as a bottle of water stays unopened, it is safe to drink. The taste however can change over the course of time. The plastic of the container can make the taste go bad when it is not stored properly. Also, sunlight can deteriorate the plastic and add to the bad flavor. Many gases are able to pass through plastics, which can affect the taste of bottled water. For those reasons, always store plastic bottles in a dry dark place without the presence of household chemicals (paint thinner, gasoline and dry cleaning chemicals). It is recommended that when a bottle of water is opened, it is used within two weeks, because algae or bacteria can start to grow and will cause health risks. So bottled water doesn't spoil when unopened, but the taste can change over time and some states require an expiration date. That's why bottled water has an expiration date.

Answer 3

Its not that the water goes bad. The chemicals that make up the plastic bottle age and leak chemicals into the water.

Water distributors expect you to drink the water as soon as you buy it. They can use a more expensive plastic that does not dissolve plastic processing chemicals into the water. These types of bottles are used in emergency earthquake kits and can last for years.

So drink that water you paid a dollar for fast because it will poison you if drink it 3 years from now.

Answer 4

maximum bottled water is available in a puppy bottle (polyethylene terephthalate (puppy #a million plastic). those bottles have been authorized for one-time use basically, yet it incredibly is uncomplicated prepare for many to reuse them, generally for convenience, money saving, or environmental motives. this may be an quite risky factor to do, although. Plastics Are poisonous. examine tutor that micro organism incredibly breeds in puppy bottles whilst reused and that reuse might reason DEHA, a carcinogen, to leach from the plastic into water interior the bottle. A learn revealed that important tiers of antimony, a toxic chemical, seeps into water bought in puppy plastic bottles. that's probably going considered one of the justifications why bottled water has an expiry date.

Answer 5

Anything in a bottle or a can will go bad if not used in an appropriate amount of time.
This is why when you store water from a spring or the tap it is suggested that you add a drop of bleach to the water.

Answer 6

the plastic leeches out of the bottle and makes the water taste bad

Answer 7

Water starts to grow microorganisms after the expiration date.

Answer 8

If it has an best used by date you will throw it out and buy more.

In the past few years more and more products have adopted this tactic.

It is marketing.

Answer 9

I think if you have any liquid sealed up in a container, and the liquid is not moving, it will eventually grow bacteria. I've had that happen with Gatorade before, although that does have several ingredients added to it. But my Gatorade did turn black, ewwww.

Answer 10

I think every food or drink product has to have those now
The water will not be bad if kept properly sealed

Answer 11

Yes if stored for logn periods of time in the wrong conditions it can most certainly go bad. Thats why sailors drank rum!