Why I don’t retighten self-sealing lids after processing. Basically when the jars cool, the food inside contracts - this pulls the self-sealing lid firmly against the jar. This forms a high vacuum (which we love in home canning!). #homecanning #foodpreservation #foodprep #prepper #homestead #canning #homesteader #vegetablegarden #stockyourshelves #farmtotable #foraging #pickles #foodstorage