In recent years, people's packaging requirements are much higher than in the past, so vacuum packaging machine manufacturers have invested a lot of human and material resources in the research and development and manufacturing of vacuum packaging machines. Now the packaging on the market is diversified, and the functions are greatly developed. Vacuum packaging machines prevent food spoilage by reducing oxygen levels. Since food spoilage is caused by microbial activity, oxygen is necessary for the survival of most microorganisms. The vacuum packer is the reason for the shipping costs. The oxygen pockets close, making it impossible for microorganisms to survive in the environment. When the oxygen concentration in the bag is less than 1%, the growth and reproduction rate of microorganisms drops sharply. Growth was terminated when the oxygen concentration was less than 05%. They are all semi-vacuum packaging machines, mainly used in this field. Refrigeration principle of vacuum packaging machine Vacuum packaging machines prevent food spoilage by reducing oxygen levels. Since food spoilage is caused by microbial activity, oxygen is necessary for the survival of most microorganisms. The vacuum packer is the reason for the shipping costs. The oxygen pockets close, making it impossible for microorganisms to survive in the environment. When the oxygen concentration in the bag is less than 1%, the growth and reproduction rate of microorganisms drops sharply. Growth was terminated when the oxygen concentration was less than 05%. Some fragile foods use an inflatable vacuum packaging machine, because the gas-filled bag can effectively avoid breaking the food. Thus affecting appearance and consumption. The vacuum inflatable packaging machine is filled with N2. Carbon dioxide, oxygen or a mixture of various gases Nitrogen is an inert gas and plays a filling role. Carbon dioxide is soluble in water or fat to form weakly acidic carbonic acid, which can effectively inhibit the vitality of microorganisms. Oxygen maintains the color of fruits and vegetables. The high concentration of oxygen keeps fresh red meat red.
Post time: Aug-12-2022