Powdered milk stored up to 20 years was still acceptable for use in an emergency. Wheat stored for 30 years and made into bread was only slightly lower in quality than bread made from unstored wheat. The other foods tested had a shelf life of around 30 years.<<<
That is exactly what I was working with, when I used the cans that Montai had given me for the animals.
Some things were not good, granola was awful, other items, some were bad and others just as the day they were canned.
I learned with the very old cans to open, put cheesecloth over the top and let them set for a couple days, then to put a pinch of baking soda in the water when cooking and they were fine.
At least with the dehydrated food, you stand a chance, with regular grocery store foods, I am seeing bulging cans here in a year or less.
Thanks for all your wonderful ideas and advice! What a treasure trove of information you are.