About Food Vacuum Sealer
Vacuum sealers help to extend the life of food products and other perishables by sealing them in an airless bag.
In general, vacuum sealers work by taking a plastic bag, sucking the air out of it and then sealing it up. Most have some kind of clamp or inlet on the side. The user places their food into a suitable plastic bag and then places the neck of the bag in the inlet. The sealer then sucks the air out of the bag, before sealing the neck of the bag using heat.
Vacuum sealing helps food to stay fresh because it protects against airborne bacteria and other agents which can cause spoilage. The system is similar to canning, in that the food is preserved in a sealed airless state away from microbes. Vacuum sealing can extend the life of fresh products to several months if those products are properly washed before sealing.
There are a wide range of vacuum sealer models on the market. Some, such as the Fresh33 professional vacuum sealer, are designed for heavy-duty use, and could even be used in a commercial kitchen. On the other hand, models such as the Eiffel Freshpack Pro EZ Vacuum Sealer are intended as a quick and hassle free way to seal up occasional leftovers at home.
When buying a vacuum sealer, it's important to consider which bags the device is compatible with. Most sealers need bags of a specific width in order to work properly, as they cannot otherwise create an airtight seal on the food. However, replacement bags are easily available for most models of sealer.