Vakuumiergerät

A Vakuumiergerät, or vacuum sealer, is a kitchen appliance designed to remove air from a specially designed bag or container and then seal it. This process of vacuum sealing preserves food by creating an airtight barrier that prevents spoilage from oxidation and the growth of aerobic bacteria. It is also effective at preventing freezer burn, a common issue with improperly stored frozen foods.

Vakuumiergeräte are available in several types, including edge or external vacuum sealers and chamber vacuum sealers. External vacuum sealers are the most common type for home use. They work by drawing air out of a textured bag placed over a sealing bar, which then heats and seals the bag. Chamber vacuum sealers are more powerful and are typically used in commercial settings. They seal food by creating a vacuum inside a chamber, submerging the bag in water during the process to equalize pressure before sealing.

The primary uses for a vakuumiergerät include extending the shelf life of perishable foods like meats, cheeses, and vegetables, both in the refrigerator and freezer. It is also used for sous vide cooking, where food is vacuum-sealed and then cooked in a precisely temperature-controlled water bath. Beyond food preservation, vacuum sealing can be used to protect non-food items from moisture and air, such as documents, silver, or camping gear. The effectiveness of a vakuumiergerät depends on the quality of the bags used and the proper execution of the sealing process.