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Canning -- Miscellaneous
If I find mold growing inside a jar of canned food, can I just scrape it off and eat the food?
Mold growth in foods can raise the pH of the food. In home canned products, this could mean that the high acid products could become low acid and therefore run the risk of botulism or other bacterial spoilage. Thus, any home canned product that shows signs of mold growth should be discarded. The exception to this is jellied products. In these the high sugar content would prevent the growth of Clostridium botulinum. In jellied products, remove any surface mold plus 1/2 inch of the good product underneath and then use the rest immediately. Jellied products with extensive mold should be discarded. Source: Original FAQ posted at http://22.214.171.124/faq/FAQ_home.php