hi everyone
just canned 7 qts of tomato juice in my pressure canner. one of the
rings and lids popped off the jar, while it was canning. the jar did
not break and the ring was not bent or misshaped, I was able to screw it
back onto the same jar and it screwed on tight. I of course threw away
the lid and ring. has this happened to anyone else?? does anyone know
why this would happen??