Canning is a method of food preservation. The term is confusing as these days, mason jars are used to can food items. The food is cooked in high temperature and then placed inside sterilized mason jars. It is then tightly sealed to make sure bacteria does not go in, thus preserving the food for the longest time. The tight seal is made by a vacuum sealer like the FoodSaver V3240, a handsome vertical-design sealer that has an accessory port that attaches the hose that can be used on the canisters and mason jars.
Canning jars are used to preserve food through the methods of pickling and canning. These methods employ the use of a vacuum sealer to seal in the food inside the jar. To do the job right, you need a vacuum sealer that has a port for use of attachments to jar sealers. The FoodSaver 4840 2 in 1 is a versatile unit that can do a conventional seal of plastic bags, and has a built-in handheld sealer for use on canning jars or mason jars. In addition, this model is especially useful for liquid foods; you will get good results when canning your marinated meat in sauce and so that the Foodsaver is a good vacuum sealer for your sous vide.
Canning or pickling food is a two-step process that involves (1) sterilization of the bottle and (2) vacuum sealing the bottle. In the second step, it is important to have a vacuum sealer that effectively does this. Not all vacuum sealers have attachments for use on jars so you have to buy the right one. You also have to know what attachments are necessary to work the vacuum sealer. We will give you tips on how to choose the best vacuum sealer for jars.
Mason jars are used for both canning and pickling. These terms simply refer to preservation methods where the container, in this case, the pickle jar or Mason jar is sterilized using high heat to kill micro-organisms. When the food being pickled is placed inside, it has to be vacuum sealed so that air will be removed from the container. The absence of air will keep off the bacteria from thriving thereby effectively preserving foods. Pickled foods live up to 5 years.