I’ve found prepared foods in cans with tomatoes seem not to last as long; the acid in the tomatoes can get “funny” after a while.
I rarely eat canned food, make most everything from scratch, plus we’re dirt poor. But still I have probably 1 1/2 years’ worth of basic foodstuffs we could survive on. What we really need is a garden, working on that one.
25# bags of oatmeal, rice, legumes, other cereals like triticale, millet, bulgar wheat, wheatberries (I have a grain grinder) etc are pretty cheap at various places. I re-pack into buckets and add oxygen absorbers sometimes, bay leaves as well. Hardly ever have had a bug problem. I just rotate and eat what we store. There are many websites dedicated to this kind of survival food and other essentials. It’s good to think of what you’d do in hard times or emergencies that could last a long time. The **** is hitting the fan financially and this alone could create a lot of havoc. What to speak of other possibilities.
Anyone who scoffs at this idea and thinks they will always have money and can zoom off to the store a few times a week is under the illusion that the future will just be like the past. Better be safe than sorry!
Canned food is really only good for one year two years max that is why I choose to dehydrate.Dehydrated sealed in jars or bags can easily last 5 years or more.