Letter Re: #10 Cans for Ammunition Storage

Mr. Rawles,  
I have searched your site and others for detailed information on long term storage using sealed #10 cans.  Are there any drawbacks?  I can buy cans from the LDS cannery for around 1.00 a piece, which is much cheaper, by volume, than regular ammunition cans.  Any information you or your readers could provided would be greatly appreciated. – John S.

JWR Replies: The #10 steel can is awesome! For food storage, they don’t suffer from the gradual oxygen transmission (permeability) weakness of HDPE buckets. For ammo storage, they work nearly as well as military surplus ammo cans. But be advised that they don’t stack well, and they are thin gauge steel, so they must be protected from dampness. The only major drawback is the cost of a can-sealing machine. They are scarce and expensive, unless you luck into a used one on Craigslist. (Normally, $300+)  Without one, you cannot re-seal cans. You can re-seal a #10 can several times, although it loses a bit of height each time.