Originally Posted by Hank
How long is too long, what about using aluminum?
aluminum is great it keeps out the UV rays and is very durable, problem is that the new aluminum cans are lined with a food grade plastic to keep the metallic taste out of the product so you also have the problem of the chemicals leeching out of the plastic this normally does not happen for at least two years or so (take a look at the inside of a beer can) its not always been this way used to have no lining and the beer or soda would develop the metallic taste after about a year or so.
During hurricane Wilma in south Florida FEMA was distributing canned water in beer cans. Budweiser was kind enough to can water and put there logo on the can
although the water was a generous offer beer would have been better
Your best bet for long term storage is to use Mylar bags.
Here is a product that claims to have a shelf life of 5+ years but very expensive.Aqua Bloxâ„¢ 5 YEAR Water Storage - 1 Case (27)
I am not saying the chemicals will kill you but why risk it
when water is easily rotated and or used up quickly