Are old Mason jars worth any money?
Nowadays, you can even buy a big flat of Mason jars for pretty cheap at your local craft or household goods store — but the older ones can fetch much higher prices. Typically, the smaller or more common antique jars can go for about $20 apiece, but the more rare versions can sell for as much as $300.
How do you properly seal a Mason jar?
0:545:37Sealing Canning Jars Hot Water Bath - YouTubeYouTube
How long does it take for lids to pop after canning?
It can take up to an hour or even longer for a canning lid to seal, and jars should be left undisturbed for a full day before you check their closures. When 24 hours have passed, check the lids. Press on the center of the lid -- if it doesnt move, the jar is sealed.