Vacuum Pack is a method of packaging that removes air from the package prior to sealing. It can involve both rigid and flexible types of packaging. The intent is usually to remove oxygen from the container to extend the shelf life of foods and, with flexible package forms, 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 of dry foods over a long period of time, foods such as cereals, nuts, coffee, Tea & Highly Perishable Products. On a more short term basis, vacuum packing can also be used to store foods because they inhibit bacterial growth.