The role of a vacuum packaging bag.vacuum sealer bags for food

The main role of vacuum inflatable packaging In addition to the oxygen and healing function of the vacuum packaging, it mainly has the effects of pressure resistance, gas resistance, and freshness, which can more effectively maintain the original color, fragrance, taste, shape and shape, and shape, and shape and shape and shape and shape. Nutritional value. In addition, many foods are not suitable for vacuum packaging and must be packaged in vacuum inflatable packaging. Such as crispy and fragile foods, easy to get pieces, easy to deform and getting oil foods, there are sharp edges or high hardness, foods that will pierce the packaging bag. After the food is vacuum -inflated packaging, the inflatable pressure inside the packaging bag is stronger than the atmospheric pressure outside the packaging bag. It can effectively prevent food pressure from crushing and deformation without affecting the appearance of the packaging bag and printing and decoration. Vacuum inflatable packaging is filled with mixed gases of nitrogen, carbon dioxide, oxygen single gases or two three gases after vacuum. Its nitrogen is an inert gas, which has a positive filling effect to keep the inside of the bag. To prevent the air from the outside of the bag from entering the bag, it plays a protective effect on food. Its carbon dioxide can be soluble in various types of fat or water, causing acidic carbonic acid with weak acidity, and has the activity of microorganisms such as mold and corruption bacteria. Its oxygen has the growth and reproduction of anaerobic bacteria, maintaining the freshness and color of fruits and vegetables. High -concentration oxygen can keep fresh meat in bright red.

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