In the past, canning acidic fruit and veggies could be accomplished very easily and effectively by using water bath canners. Having said that, using this method was highly limited, since it is not suitable for storing things with reduced acid concentrations. So using it for many vegetables and meat items wasn’t recommended, mostly because it could not produce temperatures over 212 F. And this is when pressure canner models moved into the picture.
This canning method allows for water to reach a temperature of up to 240 F. This much heat is needed to kill a bacterium present particularly in vegetables and meat with lower acid concentrations. The bacterium is referred to as clostridium botulinum. If it sounds familiar to you, that’s because it is responsible for botulism – a severe kind of food poisoning.
Using the water bath technique isn’t applicable for food items with bacterium in them, as the heating capability is poor. On the other hand, pressure canning is capable of producing sufficient heat, simply because of the pressure buildup within the pot. The pot is generally produced out of lightweight and long lasting materials like stainless steel or aluminum. The lid is lined using a gasket, and can be twisted on for locking it in place. There are, however, some models with screw down lids.
For an easy, one time expense of around $60, you’ll be in a position to can much more and there is no worry about whether your canning will spoil. These canners are very basic designs and are really durable. This means that for one small investment, you are able to produce tons of yummy food!
Traditional methods of open water canning can take a long time and could be irritating. With pressure canners, you know that there is less to fear from unwanted bacteria and that hot water and vapor is safely contained. With the racks that are simple to pull out, there is no more fear of burning your hands or spilling hot water on yourself. It’s making a simple tradition into a much more efficient technique.