Good question. I figure you are talking about using the normal canning jar lids with the special attachment that goes over the jar opening. My thoughts are that it is a really good concept but it has turned into more hassle and trouble than it is worth. I tried the system and after a lot of time spent getting nowhere I called the company. Tried everything they suggested and gave up.What’s everyone’s thoughts on vacuum sealing in mason jars for curing and storage?
For storage I will just put the flat lid on the jar and fasten down with the ring until snug but not tight. Make it too tight and the ring might not want to come loose later. When the ring does come off then the flat lid has to be pried off which often ruins it.
And if the user does not have a spare canning jar lid or two laying around, then what? Off to the store to get some and if the store is out?