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Air bubbles in my jam

I made a plum conserve yesterday and processed the jars in a hot water bath. Last night before bed I noticed there a quite a few bubbles in every jar. However, the jars did seal properly. How should I proceed? Should I store the jars in the fridge and use them up quickly because I'm sure now they are more prone to spoil. Thanks for your help!

asked by la domestique about 5 years ago

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4 answers 7448 views
Bac35f8c 0352 46fe 95e3 57de4b652617  p1291120
added about 5 years ago

In my Master Food Preserving class we were taught that bubbles, per se, are not a problem (perhaps unsightly, but not a safety concern). It is only bubbles that move that are a problem. So, watch the bubbles over time. If they move, that indicates some sort of fermentation or other bad thing happening; if not, it just means that next time you'll want to use a knife (plastic -- not metal, to avoid the somewhat unlikely but still there, possibility of thermal shock cracking the glass) and scrape around to remove bubbles before putting the top on and processing. And the truly good news, since it is a fruit conserve you made, your only real risk is spoilage, not poisoning.

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46d131cd f2c2 45e6 a471 166131eec02e  jess otoole
added about 5 years ago

Thank you SeaJambon! I really appreciate your help.

23b88974 7a89 4ef5 a567 d442bb75da04  avatar
added about 5 years ago

You may have "whipped" the jam by too vigorous a storing and incorporated a lot of air. Shouldn't be a problem if the jars were processed correctly and the jars sealed when cooled.

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46d131cd f2c2 45e6 a471 166131eec02e  jess otoole
added about 5 years ago

Thanks mbergner. I think that might be what I did. Just when I was filling the jars the phone started ringing, dog barking, husband came home from work- lost my concentration. :)

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