Pacific Northwest PNW 421 Using Manual

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Manual is about: canner

Summary of PNW 421

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    Using and caring for your pressure canner pnw 421 a pacific northwest extension publication university of idaho · oregon state university · washington state university.

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    Contents canner types . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 safety features . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 caring for your pressure canner . . . . . . . . . . . . . .6 the canner . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 canner lid . . . ...

  • Page 3: Using and

    Using and caring for your pressure canner pressure canning is the only recommended method for canning meat, poultry, seafood, and vegetables. Using boiling water canners for these low-acid foods poses a real risk of botulism poisoning. Botulism is caused by a toxin produced by bacteria called clostr...

  • Page 4: Canner Types

    Canner types home pressure canners have been extensively redesigned in recent years. Models made before the 1970s were heavy-walled kettles with clamp-on or turn- on lids. They were fitted with a dial gauge, a vent port in the form of a petcock or counterweight, and a safety fuse. Many modern pressu...

  • Page 5: Safety Features

    Jiggles during processing. They control pressure pre- cisely and need neither constant watching nor checking for accuracy during processing. The sound of the weight rocking or jiggling indicates that the canner is maintain- ing the recommended pressure. The single disadvantage of weighted-gauge cann...

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    The safety fuse, safety plug, safety release plug, or overpressure plug is an important safety feature of pressure canners. These are thin metal inserts or rubber plugs designed to release pressure from the canner if the temperature or the pressure becomes dangerously high. Metal alloy plugs melt wh...

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    1. For each quart of water, mix in 1 tablespoon cream of tartar. 2. Pour enough solution into the canner to cover the dis- coloration. Do not fill the canner more than two-thirds full. 3. Seal the canner and bring the pressure to 10 pounds. 4. Remove the canner from the heat, and let it stand 2 to 3...

  • Page 8: Using Your Pressure Canner

    After each use of the pressure canner, remove the gas- ket and wash it in warm, sudsy water. Rinse, dry, and replace the gasket in the lid. Gaskets on older-model canners may require a light coating of vegetable oil once per year. Gaskets on newer-model canners are prelubricated and do not need oili...

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    Designed to be used on a flat top (glass or ceramic) range because they have concave bottoms. On a flat top range, a large area of the bottom will be out of con- tact with the heat source, preventing the transfer of heat and the buildup of pressure. Steps for successful pressure canning 1. Put 2 to ...

  • Page 10

    6. When the timed process is over, turn off the heat, remove the canner from the heat if possible, and let the canner cool enough to lose pressure. Do not try to hurry the cooling process. Forced cooling may result in spoilage. Cooling the canner with cold run- ning water or opening the vent port be...

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    11 30 minutes when loaded with pints and 45 minutes when loaded with quarts. Newer thin-walled canners cool more rapidly and have vent locks. These can- ners are depressurized when their vent lock pistons drop to a normal position. 7. After the canner has lost pressure, remove the weight from the ve...

  • Page 12: Storing Your Pressure Canner

    Storing your pressure canner before storing your canner, make sure it is clean and dry. Air should reach the inside of the canner to prevent a stale odor from forming. Put crumpled papers inside the canner. Wrap the lid in paper or place it in a paper bag. Turn the lid upside down in the canner inst...

  • Page 13: Pressure Canner Testing

    Pressure canner testing pressure canners with a dial gauge should be tested yearly for accuracy. The extension educator in your county can test your dial-gauge canner or tell you where to have it tested. Complete the following: name address phone_______________________________________ type of dial-g...

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    15 for more information instructions for pressure canning specific foods are available in the following pacific northwest extension publications, available through extension offices of the university of idaho, oregon state university, and washington state university: pnw 172, canning vegetables pnw ...

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    Pacific northwest extension publications are produced cooperatively by the three pacific northwest land-grant universities: washington state university, oregon state university, and the university of idaho. Similar crops, climate, and topography create a natural geographic unit that crosses state li...