Gas flushing of the packaging materials or pouches is a technique used for prolonging the shelf-life period of minimally processed or fresh foods. In packaging technology with the gas flush pouches; the air that surrounds the food inside the package is either customized or changed. In gas flush pouches, the oxygen inside the pouch is removed and replaced with an inert gas, for instance, carbon-dioxide and nitrogen etc. The gas flush pouches are engineered and manufactured with coextruded films, this is done by applying a combination of PA (Nylon) between PE (Polythene) on the outer side, whereas inside there are sealing layers of modified PE.
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The saran (P.V.D.C.) barriers designed to seal the gas inside, protect the color of the food to be stored in the gas flush pouches; making them suitable for applications in the food & beverage industry. The gas flush pouches these days are compatible with most of the snorkel type of gas flush pouches filling machines. They are also compatible with Gas Flushing (CVP) or Modified Atmosphere Packing (MAP) type machines and are also known as bulk gas flush pouches.
The need for packaging solutions with a good puncture resistance is fueling the growth of the gas flush pouches market. The growing demand for packaging pouches suitable for wet as well humid environments is also a driving factor. The demand for packaging solutions to maintain the red color of the meat is another driving factor; carbon monoxide is used to maintain the red color of any kind of meat when it is flushed inside the pouch instead of oxygen. However, the concerns for global warming coupled with the excessive use of plastic for manufacturing gas flush pouches; is a restraining factor for the growth of its market.
The feature of gas flush pouches that facilitates in sealing through contamination and folds, is widening the scope for the growth of its market. One of the prominent trends in the global gas flush pouch market is the availability of the customization as per the specific requirements related to the product to be packaged. Another prominent trend is that many gas flush pouches have a good moisture as well as an oxygen barrier.
The gas flush pouches help in extending the shelf life of food and beverage products. Products such as boil in the bag and pasteurization, bread, cheese, cooked meats, fish, fresh meat, processed produce, sauces, soups, sausages; are packed with the gas flush pouches.
