Article: Canning with steam isn't safe.(Country conversation & feedback)

COUNTRYSIDE: Once again I see "steam canners" touted as an acceptable method for food storage. These have been tested and are not recommended by any reputable source. They do not heat the contents of the jars enough to kill organisms which can destroy the food. They do produce enough heat to make the jars seal but that is only a part of the process, heating the contents is essential and without this step, food is not safe. See the letter, in the same issue, from Abbey Banister re: her pressure canned corn--her jar failures ...

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