This article is from the Food Preserving FAQ, by Eric Decker firstname.lastname@example.org with numerous contributions by others.
And is there a way to be sure they are sealed since I didn't hear
that magic noise?
Nancy Delly >From George Shirley < >: Nancy: Be sure the center of the
lid is depressed, generally that means they are sealed unless some
mean person pushed them all down while you weren't looking. I've found
that if the lid didn't seal it will usually fall off when you remove
the band, but is sealed if the center is depressed. I don't have time
to listen to each individual jar. >From Mary Delamater <>: My jars
often don't pop, so I just check to see if the lids are concave. It
usually happens pretty quickly after water bathing. Also, if I'm not
sure, sometimes I will remove the ring and hold the jar by the lid--if
it stays on, it's sealed! (Be sure to put your other hand under the
jar in case it is not sealed, or you will have a big mess to clean up