My wife and I made a batch of hot pepper jam yesterday and a strange thing
happened. After taking them out of the waterbath and letting them sit
overnight, they were still VERY runny. I know, things can take up to 2
weeks to set. But the strange thing is we put about 2 tablespoons full of
the jam in a small bowl (it was what was left after filling the jars) and
didn't BWB process it. Before the BWB was done, this stuff set up
beautifully. So why didn't the BWB processed jars set up when cooled? Any
ideas?

PS I have all but 2 jars in the fridge as an experiment. They seem to be
setting up some but not fully. The two jars left out are still runny.