There are many returns to vacuum sealing. You save money because foods keep their freshness five times longer. And the foods don't get freezer burn for many years because they don't come in contact with cold air. Foods last longer, so you throw less away. Leftovers stay fresh in the freezer for several months. You can cook several portions when you have time and vacuum seal single servings in a bag and freeze them. You can also enjoy your favorite foods all year, even when they are out of season.