Vacuum sealing helps ensure that food products, whether cooked or uncooked, stay fresh for longer. Vacuum sealers can also be used to store leftovers, so one does not have to throw away large portions of unfinished food. When used right, food vacuum sealers can help reduce food wastage and spoilage. Further, they can help preserve food taste and texture. However, here are a few tips to follow while using food vacuum sealers: 1. Let the food cool down first The food about to be vacuum sealed should be completely cooled down before one starts the sealing process. As, if hot or warm food is sealed in a vacuum bag, it can accumulate a lot of moisture. If the food is placed in the refrigerator, it can develop freezer burns—dehydration and oxidation of food that may cause a change in the taste of the food. 2. Leave some room in the bag One may be tempted to fill up the entire vacuum bag with food to avoid using another bag. However, overfilling a vacuum bag is not a good idea, as it may need a little space to be completely sealed. A little room in the bag allows the air to escape when using the vacuum sealer.