Principle.
Vacuum packaging machine is through the suction nozzle into the packaging bag to be packaged, air, out of the suction nozzle, and then complete the sealing.
The characteristic.
1. The elimination of part of the air (oxygen) in the packaging container can effectively prevent food spoilage.
2. The use of barrier (air tightness) excellent packaging materials and strict sealing technology and requirements, can effectively prevent the exchange of packaging contents, can avoid food weight loss, loss of taste, and can prevent secondary pollution.
3. The gas in the vacuum packaging container has been eliminated, which accelerates the heat conduction, which can improve the efficiency of thermal sterilization, and also avoid the packaging container cracking due to the expansion of gas during the heating sterilization.
In the food industry, vacuum packaging is very common, a variety of cooked products such as chicken legs, ham, sausage, etc. Pickles, soy products, dried fruit and other foods that need to be preserved are increasingly packaged in vacuum. After the vacuum packaging of food preservation time is long, greatly extend the shelf life of food.
