1, excluding part of the packaging container of air (oxygen), can effectively prevent food spoilage.
2, the use of barrier (airtight) excellent packaging materials and strict sealing technology and requirements, can effectively prevent the exchange of content of the package, you can avoid food weight loss, loss of flavor, but also to prevent secondary pollution.
3, the gas inside the vacuum packaging container has been ruled out to speed up the conduction of heat, which can improve the heat sterilization efficiency, but also to avoid the heat sterilization, due to the expansion of gas and the packaging container rupture.
In the food industry, vacuum packaging applications are very common, all kinds of cooked products such as chicken legs, ham, sausages, grilled fish fillets, beef jerky; pickled products such as pickles and soy products, preserved fruits and other need fresh food More and more vacuum packaging. After a long vacuum preservation of food packaging, greatly extending the shelf life of food.