All of that, but I'll add make sure you wipe the rims very clean before putting lids on even if you use a funnel, just a wash rag with hot water is fine. Some people use vinegar but I've read it can compromise the sealing compound. I go finger tight but snug on the rings, they will loosen up during the process. Some people boil the lids to soften the compound first, but I only do that when waterbathing or reusing. New lids on pressure canned jars get sterilized during the process and have sealed fine. I think I've had 1 or 2 lid failures in hundreds of canned jars.We tried to can a bunch of stuff last year with a pressure canner and the jars leaked and made a terrible mess. We followed the directions we had and didn’t tighten the rings down hard or overfill the jars.
I didn’t trust any of it as the jars didn’t seal. We were taking lids off and wiping jars and putting new lids on. It was a disaster!
Anyone have a good video they could point me to that would help?
Sorta embarrassed that we failed at it so badly.
Proper headspace, finger tight rings, canning funnel, good quality lids, and making sure chamber pressure backs down completely to 0 before you remove the weight and unlatch the lid.