Jul 13, 2019· I am 64 years old, and I remember my mother using a pressure cooker to can meat. It had 8 screw down clamps, and it was the ONLY kitchen tool I was not allow to use. One time, mom did something wrong, and it exploded. The lid went flying, and the quart canning jars flew up, and broke every where. So this new pressure cookers, so much fun.