Utah State University Extension
Electric Programmable Pressure Cookers, such as the "Instant Pot, are being used for small batch pressure canning. This fact sheet explains research showing why this is a food safety hazard, with a high risk of producing home canned foods that could develop the deadly botulism toxin. Other Frequently Asked Questions about these cookers are also addressed.
Merrill, Cathy; Allen, Karin E.; Haws, Susan; Hunsaker, Teresa; Mathis, Patricia; Wray, Paige; and Serfustini, Ellen, "Why Electric Pressure Cookers Are Not Pressure Canners" (2020). All Current Publications. Paper 2081.