I don't usually post, but please don't use a pressure cooker for canning as it can cause botulism if the food isn't sufficiently acidic. The only safe way to can non-acidic foods is with a pressure canner, not a pressure cooker.
I am aware of this and I follow the official guidelines for adding citric acid if needed. Also I was using a pressure canner and not a pressure cooker so my question was more whether this device was similar in function (as I know nothing about them). Looks like you answered my question and it's not the same thing/comparable, so thanks!
Having now looked up the difference between the two (I've only ever seen pressure canners, with the locking lids and real pressure gauges, but which everyone I know calls a pressure cooker), I'm now curious what in the world you would use a plain pressure cooker for? It seems like a strictly worse piece of equipment.
