electric pressure cooker canning safety
Hi thank you for your question.
I did look at the directions for your power pressure xl cooker http://www.powerpressurecooker.com/downloads/PPC_770_6QT_IB_TP_ENG_V5_140721_notrim.pdf
They do recommend recipes by the National Center for Home Food Preservation, which any Extension service will refer you to.
This article was updated or released September 2015 http://nchfp.uga.edu/publications/nchfp/factsheets/pressurecookers.html
The national center for home food preservation mentions some important things below, but ultimately you'll need to contact the XL manufacturer to make sure the low acid foods you want to preserve are shelf stable and food safe. Unfortunately the XL pressure cooker does not meet the recommendations of the national center for home food preservation, therefore, I would question the functionality of this product.
1. "The recommendation for using USDA pressure processes for low-acid foods is to use a canner that holds at least four (4) quart-size jars standing upright on the rack, with the lid in place." The XL canner doesn't meet this recommendation
2. To pressure can low acid foods you should contact the XL manufacturer. "Some manufacturers may offer process directions for smaller pressure cookers. Consumers using this equipment will need to discuss processing recommendations with those manufacturers; the USDA and National Center for Home Food Preservation recommendation is to not use them for canning with our processes."
Please contact me again if you have additional questions, comments, or concerns.