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Canning with an Instant Pot?

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P:

I have an Instant Pot Max with a canning feature. Setting up the pot requires entering your altitude. One app that I used says I live at 921 feet, but my landlady says I live at 928 feet. My question is: Which do I use?

R:

Canning with pressure cookers and canners

I know that the Instant Pot Max has a button for canning, however, the research done by the National Center for Home Food Preservation found that it is not safe for canning because the temperature fluctuates during processing. This fluctuation can cause under-processing and you can risk foodborne illness.

The following publication will give you specific information on the safety of Electric Multicookers:


That said, the Presto Digital Electric Pressure Canner was developed specifically for canning, not cooking, and they have followed the USDA protocol and procedures for safe canning. On page 10 of the publication below you can read the information about the Presto canner and multicooker safety:

Canning altitudes

Regarding your question about altitude: the pressure and time for processing changes when you are canning at altitudes over 1000 feet. So, if you are under 1000 feet, the exact altitude wouldn't really matter.

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Use, Care and Operation of Your Pressure Canner

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Becky Hutchings, Lizann Powers-Hammond | Sep 2022 | Extension Catalog publication

Safely Canning Foods: Pressure Canners, Pressure Cookers and Electric Pressure Cookers

This illustrated fact sheet explains the difference between pressure canners, pressure cookers and electric pressure cookers. Pressure canners are recommended for food preservation but pressure cookers and electric pressure cookers are not.

Jeanne Brandt, Nellie Oehler | Jun 2023 | Extension Catalog publication

Trade-name products and services are mentioned as illustrations only. This does not mean that the Oregon State University Extension Service either endorses these products and services or intends to discriminate against products and services not mentioned.

Canned peppers in glass jar (photo Lynn Ketchum)
Want to learn more about this topic? Explore more resources from OSU Extension: Home food preservation, Home food safety and storage

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