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The kind of food you’ll be canning determines the type of vessel you’ll be using: a water-bath canner or a pressure canner. Refer to Chapters 4 and 9, respectively, for detailed information on using each of these vessels.

 Water-bath canner: A water-bath canner, also referred to as a boiling-water canner, is a kettle used for processing high-acid foods (primarily fruits, jams, jellies, condiments, and pickled foods). The canner consists of a large enamelware or stainless-steel pot with a tight-fitting lid and a jar rack. Check out Chapter 4 for an illustration of a water-bath canner and instructions on how to use one.

 Pressure canner: A pressure canner, sometimes referred to as a steam-pressure canner, is used for canning low-acid foods (primarily vegetables, meats, fish, and poultry) in an airtight container at a specific pressure. A weighted gauge or a dial gauge measures steam pressure in the canner. This ensures that the high temperature of 240 degrees is attained to safely process your food. Pressure canners and how to use them are described (and illustrated) in Chapter 9.