I'm crazy about making small batches of Jams and Jellies. I always have fruit of some kind on my table. (tired of eating it, but it's good for you). So I turn it in to ONE OR TWO jars of jam/jelly. I'm frugal (smile) so I'm not into buying mason jars, all the time. This is how I reuse some of my jars. NOT FOR REALLY LONG PRESERVING TIME.