Pressure canners are devices that take all of the headache out of canning. Normally, canning means handling large pots filled with boiling water and hot containers of food which could contain bacteria that may truly cause harm to all your family members. Luckily, pressure cooker models are designed to be safer and more effective. They are still large pots that you put on the stove top, however they have a covered top with a pressure gauge and racks to put your jars in. Which means that you are able to step away from your range while canning, not worrying about water spilling over and making a mess. You just start your timer, walk away and come back to loads of preserved goods.
As stated above, the temperature is hotter and so it’s safe to can low acid foods that pose a risk of bacteria when using an open water method. This means that it is time to get much more creative with what you can and experiment with various things!
Using the water bath technique isn’t applicable for food items with bacterium in them, as the heating ability is limited. On the other hand, pressure canning is capable of producing sufficient heat, because of the pressure buildup in the pot. The pot is generally made out of lightweight and durable materials like stainless steel or aluminum. The lid is lined with a gasket, and can be twisted on for locking it in place. You will find, nevertheless, some models with screw down lids.
With the racks it is easy to stack jars and can much more. It also assists you to take out the cans and not have to worry about burning your hands in warm water. You just leave them in the rack until their cooled and ready to store.