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Water Bottle Expiry Dates

Discussions about procuring and purifying water
DaScribbler
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Water Bottle Expiry Dates

Postby DaScribbler » Mon Jun 24, 2013 7:31 am

This is one I've never understood, maybe someone can explain it me.

Why does Bottled Water have expiry dates?

These bottles are made for water storage and water is water, when stored in water safe containers it can't go bad.

Yes, these containers breakdown over time and chemicals or plastics may leach into the water, but these bottles will take decades to break down and even if traces of plastics or chemicals leach into the water, then simply running your expired bottle water through a Berkey/Brita/Whatever filter should minimize the risk.

Every bottle of water I see has an expiry date of approximately 18 months to 2 years on it. Sure maybe the water won't taste "Fresh" but its still safe even after the little date stamped on the bottle.

I'm convinced its just a marketing ploy.

Can anyone spread any light on this?
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ranger2012
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Re: Water Bottle Expiry Dates

Postby ranger2012 » Mon Jun 24, 2013 7:27 pm

I have heard of this also, mainly because some companies do not purify their water, some bacteria can still exist in the bottles. If you fear that this could happen, there are a few simple steps to rectify this problem.
1) use what you store, and rotate stock.
2) with the clear plastic bottles, put them out in the sunlight for an hour, and the UV rays will kill off most bacteria.
3) research the company that you buy the water from.

:mrgreen:
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Re: Water Bottle Expiry Dates

Postby Perfesser » Tue Jun 25, 2013 6:06 am

Regulations say all food products must have an expiry date. Someone decided on 2 years for water. Not an expiry date either, a "best before".
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Re: Water Bottle Expiry Dates

Postby LoneHowler » Tue Jun 25, 2013 7:52 am

Doesn't hurt to rotate them out. I always have one flat of 36 being used for my work lunch bag, jogging etc and at least 2 for just in case. Since I'm only prepping for myself it's plenty.
But after the recent flood I think I might start storing more for giving away. It's clear that in a SHTF scenario when the laymans are clearing store shelves in a panic, first responders will be needing supplies. It would be nice to show up with a truck full of water to give away
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Re: Water Bottle Expiry Dates

Postby WildernessReturn » Wed Jun 26, 2013 2:33 am

DaScribbler,

water bottles have an expiration date based on two factors;
1. the purity of the water and additives that they put in

2. the main one, the quality of the water bottles and level of plastic.
a. look to the bottom the ones with the Recycle symbol and the letter 3 - are the highest grade for general consumption.
b. if it has a number 1 or none on the bottom, they are designed to break down faster in the landfill.

There are higher levels of plastic bottles that are speciality bottles for fuels or for purity for scientific reasons. Pop bottles from mane suppliers say Coke/Ginger Ale, normally are a # 2 they are food safe and last considerably longer than the # 1 bottles.
# 3 are for food storage and purity, break down very slowly and contain no BPAs same as the # 2s

if you leave the bottles right on concrete, or freeze the bottles they break down much faster and in fact they start to break down even in the stores.
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DaScribbler
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Re: Water Bottle Expiry Dates

Postby DaScribbler » Thu Jun 27, 2013 8:57 pm

Thank You for your replies :)

I'm not a big Bottled Water drinker, but keep an excess of 36 Gallons of bottled water on hand for emergencies.

I've checked the bottles and all are #1 Bottles and 27 gallons are near or past the stamped expiry date. I'm moving these expired bottles to my cold storage room as there is little to no chance of my going through them anytime soon.

So, as these bottles apparently break down faster then others, my tentative plan would be to keep them and put the water through a Brita filter or Aqua Pail before consuming them in a SHTF situation. This could be tomorrow or another few years down the road.

As most on this board are far more knowledgeable them myself, is it safe to go this route or would I be best to simply dispose of them and restock with fresh supply?


*** Edited to Add ***

#1 (PET or PETE) plastic is the kind used for bottled water bottles, which are generally regarded as safe. They have been shown to leach antimony into the water in a couple of studies, but at levels considered safe by the EPA. The scare about their leaching DEHA if reused, which you may have come across, turns out to be an urban legend. If there is any risk from reuse, it probably comes from bacterial contamination. (The bottles' narrow necks make them hard to clean.)


From: http://www.nrdc.org/thisgreenlife/0902.asp
Last edited by DaScribbler on Thu Jun 27, 2013 9:05 pm, edited 1 time in total.
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Re: Water Bottle Expiry Dates

Postby farmgal » Thu Jun 27, 2013 9:04 pm

I would personally use them
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Re: Water Bottle Expiry Dates

Postby WildernessReturn » Fri Jun 28, 2013 1:29 am

keep and use,
depending on how long they have expired and how much plastic is floating around, you might want to rig up a sand filer or even some mesh to catch the plastic particle bits.
cheesecloth or some other cloth that is very fine should do.
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Re: Water Bottle Expiry Dates

Postby DaScribbler » Fri Jun 28, 2013 5:54 am

WildernessReturn wrote:keep and use,
depending on how long they have expired and how much plastic is floating around, you might want to rig up a sand filer or even some mesh to catch the plastic particle bits.
cheesecloth or some other cloth that is very fine should do.



Coffee Filters?
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Re: Water Bottle Expiry Dates

Postby scrounger » Fri Jun 28, 2013 1:31 pm

FWIW

http://www.chow.com/food-news/53959/doe ... er-go-bad/

Lot's of info on the web. General consensus is plastic is bad. How bad is up to your risk appetite. Dying from dehydration is worse.
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