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Canning

Canning question--about headspace

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Canning question--about headspace

nofunlatte | May 29, 2012 04:11 AM

I made some raspberry jam in 4-oz jars and I had some leftover, which inlaced in a clean jar in the fridge. One of the seals failed, so I decided to reprocess, in using the leftover bit in the freezer. Recooked the jam, placed into sterilized jars, and water bathed for the appropriate time. One of the jars had just over 1/2 inch headspace instead of 1/4 inch. If it had been a half-pint jar, I'd have no hesitation about storing at room temperature. Do I need to worry about a 4-oz jar? Btw, the seals are fineon the reprocessed batch.

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