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Canning -- Miscellaneous
Can food be re-canned if the lid does not seal?
Canned food can safely be recanned if the unsealed jar is discovered within 24 hours. To re-can, remove the lid and check the jar sealing surface for tiny nicks. Change the jar; if necessary, add a new treated lid and reprocess using the same processing time. Source: Original FAQ posted at http://188.8.131.52/faq/FAQ_home.php