Gudy foods uses nitrogen flushing and sealing machine to force the regular air out of the nylon and inject nitrogen gas into the packaging. Nitrogen doesn’t react with food like oxygen does,so foods stay fresher longer and doesn’t affect the flavour or texture of the food. Since nitrogen fills up the bag, it helps to protect the delicate UPY in-side.of course, once you open the bag, the food is no longer protected and will start to deteriorate, however you can maintain some of the freshness by keeping the package closed with a twist tie or clip, or by placing the food in a resealable container.

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