Vacuum Sealer – A vacuum sealer is a reduced oxygen packaging device that keeps food fresh in the freezer by creating an airtight Mylar wrap around products. This process creates an anaerobic environment that limits the growth of aerobic bacteria or fungi, and prevents the evaporation of volatile components (no more freezer burn!), extending the safe storage times and quality of refrigerated foods, dried foods and frozen foods. Vacuum sealers have recently become a popular tool for home cooks as well who are exploring the world of sous vide cooking in which food is sealed in plastic and submerged in a hot water bath for gentle, even cooking. However, a vacuum sealer is not necessary for sous vide cooking. Less technological sealing techniques work equally well. Learn more here.