In fact, dry canning food can be dangerous, since one may expect food stored in such a fashion to be safe to eat, while it has actually spoiled. When using mason jars for actually canning or ...

Subscriber Login Please subscribe to keep reading. You can cancel at any time.

everything changed in the world of canning. The Mason jar solved the food preservation problem with the use of a lid and rubber seal. Mason’s patent was for the machine that cut tin into threads ...