Yesterday's batch of mulberry jelly did not set. I think the pectin was old, which is a direct result of me not canning very much. It was my last box, so I'll be refreshing that supply soon.
In retrospect, there were a lot of "odd" things that should have tipped me off. First of all, there wasn't any foam after the hard boil. Then the jars took much longer to "ping" than usual. The jelly wasn't really setting on the spoon, either.
When I realized the jelly was runny, I put all the jars in the fridge overnight. This morning, I had gooey syrup. Not jelly. So I reprocessed them, using low-sugar pectin, more water and sugar, and a little lemon juice. All the correct signs were there to indicate that it worked this time. Oddly, I ended up with one less jar.
While I am sad that I wasted all those lids, I do think the Great Canning Lid Shortage of 2021 might be over. I found lids in the hardware store when I was buying jars, and they're no longer listed as out of stock on Amazon. I did buy a few boxes when I saw them yesterday, but I still have a lot of the Bernardin ones I got before. Because I haven't been canning much. Which, hopefully, will change.