Canning jars: caps & rings vs bail-type clamps - Ask Extension
Do the old fashioned canning jars that use a wide rubber gasket and clamps on either side of a glass lid hold a vacuum long-term as well as the modern...
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Canning jars: caps & rings vs bail-type clamps #819546
Asked January 31, 2023, 6:45 PM EST
Do the old fashioned canning jars that use a wide rubber gasket and clamps on either side of a glass lid hold a vacuum long-term as well as the modern cap and ring systems, both for pressure canning and for water bath canning?
Thanks!
Washington County Oregon
Expert Response
Hi Sharon. The two-piece metal lid and screw band system was developed to improve upon the poor sealing rate of the old canning jar with separate gasket and bail over the lid. In recent tests by the National Center for Home Food Preservation, the two-piece metal lid system showed a 100% sealing rate with strong vacuum when processed according to directions.
If you have some of these jars you might be able to use them for pantry storage, or non-canned food storage items.
If you have some of these jars you might be able to use them for pantry storage, or non-canned food storage items.
Thank you so much for your expert, timely response!
Sharon
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Sent from my iPhone
On Jan 31, 2023, at 9:32 PM, Ask Extension <<personal data hidden>> wrote:
You are welcome.
Glenda
Glenda
