The food we eat will change and rot because of direct or indirect contact with oxygen in the air, which means that the existence of oxygen is an important external factor causing food deterioration, which has a negative impact on food storage.
Therefore, in order to extend the storage life of food, it is necessary to isolate the food from the oxygen in the air to avoid the oxidation of fat and the reproduction of microorganisms, so as to maintain its inherent commercial value.
This is the principle of inflatable food packaging. Nitrogen is completely inert to food. It has no effect on the color, aroma, taste and other qualities of food. It can also avoid the proliferation and reproduction of bacteria, yeasts and molds, and avoid the spoilage caused by the harmful effects of these microorganisms on food.
It can also effectively prevent the rancidity of oil in food, the oxidative decomposition of vitamin C, and the oxidative change of original color, greatly extend the shelf life of various perishable foods, and play a fresh-keeping effect.