I was able to get my hands on some tart cherries even though much of the crop was ruined by frost this year. I love cherry jam made with tart cherries and so used all the cherries to make jam. Unfortunately I had 3 half pint jars of jam crack and break in the canner during processing. One broke in the first batch and two in the second. I am not sure what happened. I properly inspected, washed and preheated all the jars before processing. But it made me sick because of how much I love this jam and how sparse cherries are this year to have three jars ruined.
Ugh, that is so frustrating! That happened to me last year when I was canning salsa. I blamed it on boiling the water too hard and not using the rack at the bottom. Regardless, I'm jealous of your sour cherry jam. I picked a lot of sweet cherries, but no sour cherries that I like far better than sweet...
ReplyDeleteAfter doing some reading I have also concluded it was from boiling the water too hard before I put the cans in. The water should be hot but not boiling when adding them to the pot. I guess in the past I haven't had enough time to get the water that hot before putting the cans in. O well.
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