Whatever I can’t put up (can in mason jars) in the big canning pot on the grill (why the charcoal and canning jars/lids), and can’t be dehydrated into ‘jerky’, will be no doubt lost.
It is a good idea to prepare and preserve some protein as it is possible (a little bit at a time). I always keep a couple large boxes of powdered milk on hand. I couldn’t afford to buy a lot at once - but do buy a couple extra canned products (ham, tuna, chicken, sliced dehydrated beef, roast beef, sardines, corned beef hash, corned beef, etc.) every time I go shopping. I always keep extra boxes of cereal in the cupboard (along with graham crackers, soda crackers, corn chips, tostados, etc.)
A few extra cans of veggies and fruits are good, too.
I also have a couple bags of tortilla flour (and could make tortillas on the grill, if I felt it necessary.)
I have done this all my life. Not for any impending ‘doom’, but, just because of the security it offers.
Be wary with the soft packages. You could have mice. Squirrels are also real sneaky.