for many years I have canned a lot of food. when all the kids were home, I used to can over 100 qrts of tomatoes every year, lugs of peachs, pears and nectarines. made pints and pints of jam and vegetables. One thing I had always wanted was a reusable canning jar lid.
there is now such a thing available at reusablecanninglids.com
they sell a plastic and rubber ring lid called a Tattler lid. The lids are BPA free. And made in the USA!!
and I have found this blog ~ susangodfrey.com that is giving away some of these lids Go here to her post for a review of these lids and sign up for her giveaway.