Category Archives: Canning Hamburger

Recipe for pressure canning hamburgers in mason jars

Why is Canning Headspace Crucial

Food preservation has a long history.  Canning food is a recent development in that history.  Preserving food by heating and sealing in an airtight environment didn’t come along until 1795 when Napoleon offered a reward for developing a reliable and safe way to preserve food because his traveling army of men were hungry.  A method […]