Vacuum Machines / Vacuum Packing Machines are packaging equipment used in the vacuum packing or vacuum packaging process, this method of packaging that removes air from the package prior to sealing. The intent is to remove oxygen from the container to extend the shelf life of foods or to reduce the volume of the contents and package.
Vacuum packing reduces atmospheric oxygen, limiting the growth of aerobic bacteria or fungi, and preventing the evaporation of volatile components. It is also commonly used to store dry foods over a long period of time, such as cereals, nuts, cured meats, cheese, smoked fish, coffee, and potato chips (crisps). On a more short term basis, vacuum packing can also be used to store fresh foods, such as vegetables, meats, and liquids, because it inhibits bacterial growth.