The Fresh & Save vacuum lunch boxes are designed to work with the vacuum pump so you can enjoy fresh food on the go. Prepare healthy salads, colorful grain bowls, or delicious soups the evening before or even days in advance. The smart vacuum pump slows down oxidation, so salads stay crisp and green, with the vitamins and flavors locked in. To reheat, simply place the unsealed extra-light and breakproof containers in the microwave. The handy compartment divider included with the lunch box ensures foods stay separated, keeping them in tip-top shape hours and days after they've been packed. With the Fresh & Save system, you can shop once a week and refrigerate or freeze fresh fruit, vegetables, meat, and fish in our vacuum containers and bags and enjoy the benefits of your own fresh market at home. Prepare your meals days in advance and enjoy them as fresh as the day they were cooked. Cook meat sous vide or marinate meat for the grill in just 30 minutes in the vacuum bags and containers. Here's how it works: Dock the vacuum pump onto the container or bag valve and at the push of a button it extracts the air in mere seconds. It stops automatically once a sufficient vacuum has been obtained, locking in flavor, aromas, and vitamins.