So, I did it--I canned one jar of my 40 lbs of pears in an old Gem jar complete with glass lid, rubber ring, and modern steel band--and it sealed
(I also canned the rest of the 40 lbs of pears and they filled 28 quarts/litres.)
(I also canned the rest of the 40 lbs of pears and they filled 28 quarts/litres.)