Shelf life ,Tinned and Dry

[Reality Jones]

I think the thing to remember about long term storage of any products is to check them on a regular basis, to make sure that none of the seals have been compromised or succumbed to rust, be it the tins you have stashed or the mylar bags of food you have in sealed buckets.
For me the 15 yr plan sounds like a good one, along with the regular checks there should be no nasty surprises when you come to use your stash.