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Canning -- Miscellaneous

What can I process in half-gallon canning jars?

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One or more canning jar manufacturers are selling half-gallon canning jars. One manufacturer has a printed note on the top that says half-gallon jars are only used for some highly acidic foods in a boiling water canner. The only processes that USDA, the National Center for Home Food Preservation and the University of Georgia have to recommend for half-gallon jars are for very acidic fruit juices (and juice only): Apple Juice (http://www.homefoodpreservation.com/how/can_02/apple_juice.html) and Grape Juice (http://www.homefoodpreservation.com/how/can_02/grape_juice.html). This process time is not to be used for tomato juice, for example. There are no other research-tested processes for half-gallon jars. Boiling water processes for other foods for jars larger than those published with recipes (usually pints and/or quarts) cannot be extended by any formula to a larger jar. We are aware that there are historical recommendations for canning foods in half-gallon jars. However, these are not currently accepted or endorsed by the USDA, Cooperative Extension System or U.S. manufacturers of home canning jars. Source: Original FAQ posted at http://128.192.83.157/faq/FAQ_home.php

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