Food Vacuum Sealers - How They Work

Food Vacuum Sealers - How They Work

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Food Vacuum Sealers are extremely versatile and handy appliances to own, both in domestic and commercial kitchens. The main purpose of food vacuum sealers is to remove the oxygen from the food in the Foodsaver bag, which preserves the food contents longer. Oxygen is one of the main reasons why food spoils, because mould and bacteria thrive when there’s oxygen in their environment. The growth of mould and bacteria is significantly slowed down when the oxygen is removed.
So how do food vacuum sealers work? Firstly, a Foodsaver bag (also known as food vacuum bags, cryovac bags, vacuum packaging bags) with the food contents inside it is placed into the food vacuum machine and the air is removed from the bag. During this process, no other air is able to enter the bag.  Once the air is removed from the Foodsaver bag, the bag is sealed. The bag needs to be sealed very securely to remain closed and air unable to enter. A heated area seals the plastic closed by melting it slightly, providing a very strong seal which can only be opened by cutting the bag.

Advantages of using a food vacuum sealer is obviously the reduced wastage of food. Food can be purchased and stored for a lot longer than if they are not vacuum sealed. Buying in bulk is a great way to save time and money, as the food can simply be vacuum sealed and stored away for future use.  Meat keeps better in the freezer as sealed meat prevents freezer burn, which happens when there is air in the meat’s packaging. Marinating food is also another time saving use for the vacuum sealer – because the air is removed from the meat, the marinade can penetrate the meat quicker and doesn’t need to be left to marinate for hours or overnight. Leftovers and large portions of meals can be sealed and frozen for later use – what family couldn’t use that to help out at dinner time!

Food vacuum sealers are great for keeping your food fresh for longer, reducing household food waste and preserving vitamins, minerals, colour and flavour.

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