'Vacuum sealers have been around for a while, but there are many things you may not know about them. First of all, no vacuum is involved, however there is a lot of aspiration. Vacuum packaging machines are used to protect and preserve food. There are a few things to know about vacuum sealers before making a purchase, starting with the different types of sealants available. Vacuum packaging machines are ideal for packaging a wide variety of foods. You see supermarket food packaged this way all the time, whether you realize it or not. Dried meat, salmon steaks, french fries and dried fruit are just some of the items you can find. Vacuum sealers essentially remove or replace natural air. In the case of dried meat, 99.99% of the air is removed, making it nearly impossible for bacteria to grow. With French fries, natural air (which includes vital oxygen) is removed and replaced by an inert gas, such as nitrogen. Because the chips are so brittle, removing 99.9% of the air will damage the product.'
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