You can use any 15 psi pressure cooker to can. You just have to take your time and use a few small jars at a time. We now have two pressure cookers and three pressure canners. We only have two outdoor burners for the big pressure canners but we are considering a third. If you are going to use the pressure canners on an open fire be sure to coat the bottoms and sides with soap, it makes them easy to clean the soot off.