Your pressure CANNER can be used as a COOKER but not vice versa.
Pressure cookers are designed to cook effectively and quickly with
pressure but do not actually require a specific pressure level. Because
of this, the pressure levels can vary from cooker to cooker and even
with the same cooker depending on what you make and how long you have
been cooking it for. There is simply no way to ensure that your canned
foods have reached the proper pressure level to be safe. Pressure canners are designed to maintain an exact level of pressure as per what is safe to process foods at. A pressure canner has a pressure regulator to keep it at exactly 5, 10, or 15 lbs of pressure. Those settings are a must when it comes to safe canning – if the pressure is slightly too low, it may not be able to get the canned goods to the required temperature for the required amount of time to prevent botulism spores.