dave wrote:

> 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??

i suspect you put the lid/ring on too tight to
begin with. i'm not a pressure canner expert
though, so the others here may have better ideas...


songbird