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From: nomikins (
Subject: Definitely not...
Date: August 16, 2004 at 9:46 am PST

In Reply to: Pressure cooker for canning? posted by Meredith on August 13, 2004 at 8:33 pm:

From an earlier post by Elote:

Even though some manufacturers certify their brand of pressure cooker is acceptable for use as a pressure canner, most canning experts will tell you not to use a regular pressure cooker for canning purposes. You can, however, still use a pressure cooker with a regular lid, for small batches of water bath canning. Pressure cookers are NOT recommended for canning because a fully loaded canner takes a longer time for heating and cooling. This time is taken into account when determining processing times in standard canning timetables. The smaller pressure cookers have smaller loads, and this causes them to heat and cool quicker than a pressure canner. This causes problems with accurate timing.
That "problems with accurate timing" translates into increased risk of food poisoning, including fatal botulism.

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