The patented 2-layer quality and the special ribbing ensure excellent vacuum sealing properties, keeping food fresh up to 5 times longer. The bags allow for space-saving and safe storage of food in the freezer, protecting it from freezer burn, and can later be heated in the microwave, for example. They are heat-resistant up to 100°C, making them suitable for heating food in a hot water bath. These special bags are also ideal for the increasingly popular sous vide cooking (vacuum cooking at low temperatures). Their robust quality allows for environmentally friendly reuse; they can simply be rinsed out and used again. In addition to food, the VBS 203 bags can also be used to safely store other items. Vacuum sealing protects jewelry from tarnishing and keeps delicate items (such as bandaging materials or camping supplies) safe from moisture and dirt.