[CottonBall]

DW did tell me to put the lids and rings on loosely when putting the jars in the oven, then tighten them down when you take them out.

I'm glad you told me that - I was going to leave the lids off while they were in the oven - so the moisture could escape, I thought. Wasn't there something about boiling the lids to soften the rubber seal?

[Marmolade]

He said to boil the lids for 5 min. (do I have that right, DW?), dry them with paper towel and place on jars. Then put the rings on loose before placing in oven. I was going to do the same thing, open jars in oven, then try to put lids and rings on, but this worked great. Just tighten them up when you take them out and wait for the pings as they cool down. Try it, it’s good fun!