Why won't a pressure cooker work? Its nothing but a pot, a tight fitting lid, and a weight. Yes, eventually, the silicone seal will fail - but that's a LONG time off.If a worse case scenario happens, a pressure cooker won’t work.
But a Waterbath canner will.
You can preserve with the WB method most anything using correct times. (Which can be done on a fire pit.)
And before you go attacking me that it’s not usda safe or whatever.
Until this year I was raised that you only Pres. Can meats & low acidity stuff. WB the things that are “safe” per the “rule” books.
But if you look into other cultures, our ancestors, etc…you’ll find that pressure canning is more often a novelty & WB a staple. (Some countries can’t even get PC; to get one in Canada is exorbitant priced.) They also don’t have some gov agency telling them specific recipes are only safe.
So if a worse case scenario hits, you should be comfortable w doing WB for all given you have access to fresh water. (Which after using for canning you can use to wash dishes, sanitize, etc…)
Just some more food for thought.
Did you have something else in mind than one of these???
A water bath canner is nothing but a stockpot, and a way to keep the (non water) contents from sitting directly on the bottom.