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Canning -- Miscellaneous

Is it necessary to exhaust a pressure canner?

Rating: 100

Yes, it is very important to allow steam to escape for 10 minutes before closing the valve, or placing the weight on the vent. If the canner is not exhausted, the inside temperature may not correspond to the pressure on the gauge. Source: Original FAQ posted at http://128.192.83.157/faq/FAQ_home.php

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