FoodSaver® Vacuum Sealers, Bags and Accessories. The FoodSaver® system keeps food fresh up to 5x longer* than ordinary storage methods like zipper bags, foil, plastic wrap and containers. Air is the enemy of freshness and primary cause of freezer burn and dehydration in foods stored in the freezer, refrigerator and pantry. Ordinary storage methods trap air inside, causing food to lose flavor and nutrition over time. FoodSaver® vacuum sealers remove and lock out air and moisture using specially-designed bags and canisters to prevent freezer burn.** *Among other brands tested, October 2008 **Simulated photo based on study conducted on April 2008