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Oops--shortened canning time

Posted by balloonflower CO 5b (My Page) on
Sat, Jul 20, 13 at 23:30

While putting my final recipes and reviews in my cookbook software program tonight, I realized that I shorted my WBC times for my recent round of jams. Did cherry port, mango lime, and apricot vanilla in half-pint jars. Normally, I water bath for 20 minutes, but for whatever reason my brain didn't kick in and I only did 15 on these 19 jars. They were hot pack, and I am sure they were at the full boil for my altitude for the full 15 minutes, then a 5 min cool down with burner and lid off. There was plenty of space in the canner--they were not packed in, so plenty of water flow around them.

In Denver, so 5200 elevation, which normally has me adding 10 min for pints (and I do for half-pints normally too). Should I be concerned about these jams. Worth reprocessing? They all sealed well, though the mango did leak out a bit, the jars are still sealed. Or, are they probably okay because they were half-pints.


Follow-Up Postings:

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RE: Oops--shortened canning time

If you're speaking of regular, full-sugar preserves I wouldn't bother to re-process. There's no health and safety issue and as long as they're well-sealed they should be fine.

You might want to mark those jars and move them to the front for earliest use but that's for peace of mind, not necessity.

Carol


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RE: Oops--shortened canning time

They are a low sugar type using Pomona's pectin. So, if I just keep them for quick use--within 6 months as a goal? And obviously, if I notice signs of spoilage to toss.

Hmmm...may have to start making lizer cookies with cherry jam filling


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RE: Oops--shortened canning time

Well, there's still no health issue per se as long as you don't see mold, but definitely shelf life will be shortened.

In fact, even properly processed there are studies showing a reduced shelf life for low-sugar preserves.

But I think you'll be fine just moving those jars to the front of the line.

Carol


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