Why Does Bottled Water Have A Use/Best By Date On It?
 

Ive never understood that, does anyone actually know the real answer?

Is it required to be on them by law or something?

Regards,

Lee

Because plastic bottles cause degredation of the water quality over time.

Holiest and Greatest Turbo Regards,

8 Characters

freshness...ever drink stale water?

i bet it also have something to do with micro organisms having the ability to grow after a certian period of time

"we don't need no education...."

Unless it's been boiled, there are probably some micro organism still living in it ...

I was just going to say that. It's probably bacterial growth over a certain time raises the toxicity to an unsafe level.

I said it first......

hurry up and pay your design bills

What a nice thread :)

thieving scum..

Exposed to sunlight could have something to do with it.

leave a bottle of un opend water in sunlight and algie will form inside the bottle
(green shit)

how can you tell it's not infected by airborn bacteria?

There was also a recent study that shows there is a toxic chemical that leeches into the water from the plastic over time. If you buy bottled water you are supposed to try to buy the ones that come in polypropolene plastic bottles... the other type of plastic commonly used, (name escapes me right now), is the one that fills it with poison. Health Canada says the amounts are acceptable of course. But I take in enough poisons on purpose already, don't need anymore.

dehydrated water is the only way to go

plastic also cantains bacteria

How would they grow if there are no nutrients or oxygen in water?

I just saw a news piece that was about some unused bottled/canned water that was donated to the New Orleans disaster victims by coca cola..it was destroyed just recently by FEMA workers because it was past the use by dates on the containers...a spokesperson from coca cola said that the water itself does not go bad as long as the container is unopened, the reason they put use by dates is because the water can take on the taste of the container over time.
Other than that its supposed to be just fine to use.

I just read an article about that, the other day. I had never really given it much thought, but the writer talked about all the long term health effects and possible cancers that may start to spring up in people over the years to come, due to the massive amounts of bottled water we consume now. Soft drinks and other liquid drinks have been in plastic bottles for awhile, but that wasn't mentioned.

Micro organisms are in everything. :winkwink:

woj...you seem like a smart guy...i am having a hard time believing that you made that statement...please retract it

i don't know why is that, but i'm sure that people in Africa would accept water even if it was in the bottle for years. :)

Because just about everythign within time goes bad.:tongue:

I don't want to spend too much time researching this, but check this out:
http://ask.yahoo.com/20031125.html
http://www.arrowheadwater.com/faq/categories.asp?id=7

Nothing is mentioned there about bacterial growth... so why not? The water sold as far as I know is not boiled, so clearly there will be some bacteria just floating around in it. So I think the only logical explanation is that there aren't enough "nutrients" to support growth.

What does Pepsi have an expiration date?

I would say it depends on the processing at the plant and whether the water was reverse osmosis or spring. A simple test to accelerate the bacteria growth would be to leave a bottle of water in the direct sunlight for a week or two. :2 cents:

what you said above, however was that water had no nutrients or oxygen in it.

Water = H20 = Two parts Hydrogen, one part Oxygen
and I think that is what SquireMD was trippin balls on

Big B
CECash.com

true, but I don't think bacteria can extract oxygen from H20... or can they? It's been a while since I've studied any of this stuff, so I'm probably wrong, so just nevermind me and carry on... :)

think about processing time and bottling...how long do you think it sits in a warehouse etc b4 it gets to you the consumer?

You're not supposed to refill your bottles because of this.
But that's what I was going to say as your answer.

If I'm not mistaken toxins can get into plastic containers over time. This would make storing a bunch of bottled water in a cellar potentially dangerous given enough time.

Same reason chewing gum loses 80% of its flavor after 60 seconds -- consumption rate manipulation. But, since ya can't call it "pure" water and put stuff in it that actually goes bad (or can ya -- :winkwink: ), they just pop an expire date on it and hope ya won't think about it too much, which most people don't.





2hp

You might find this article interesting http://www.mercola.com/2005/apr/27/plastic_bottles.htm

http://www.mercola.com/images/newsle...4/27/brass.jpg

Its so you go out and constantly purchase fresh maybe.

Cos that eats the container and the more relevant question there is why does the container not have an expiry date. :)

what do you call a gay dinosaur?

everything has its own time. sooner or later the richness of a thing will fade away

We sell the expired water to faggots who don't pay their bills. That's why.

I don't know either. I haven't tried drinking expired bottle water yet. :)

WHY DOESN'T lee pay his design bills?