Food stays fresh up to five times longer compared to traditional storage methods without vacuum. The effect: all the freedom in the world! Do a big grocery shop once a week and refrigerate or freeze fresh fruits, vegetables, meat, and fish in the vacuum containers and bags from the series, enjoying the benefits of your own fresh market stand at home. Prepare your meals days in advance and enjoy them as fresh as on the day of preparation. Cook meat sous vide or marinate meat for the grill in just 30 minutes in the vacuum bags and containers. Like the other boxes in the series, the vacuum gratin dish is made of sturdy borosilicate glass. This long, flat, rectangular container is ideal for easy storage of lasagnas, gratins, and other baked dishes in the fridge and freezer. It is also practical for marinating meat. The vacuum bags can be used as waste bags for your prepared slow-cooking ingredients. Whether you are chopping vegetables for freezing or searing meat portions for the slow cooker, they are perfect for batch cooking preparation mode. Reheating food in the microwave directly in the containers with lids is also hassle-free. And when you have nothing to store, simply stack the dishwasher-safe containers inside each other.