Controlled atmosphere packaging is a new type of food preservation technology which will replace the air in the package by mixed gas (usually CO2, N2 and O2 with certain proportion). It adopts the different role of such mixed gas to inhibit the growth of microorganisms which will cause food spoilage, and reduce the respiratory rate of active food (plant-based foods such as fruit and vegetable) . In this way, it will keep food fresh and extend the shelf life. The food in modified atmosphere package will maintain the original color, flavor, taste, shape and nutrition of the food.

Qualified modified atmosphere packaging machine (MAP) should conform to two key requirements, they are: high gas replacement rate and low gas mixing accuracy error rate. These two key indexes are needed when judge the quality of MAP machine. Shanghai Sanjing Machinery Co., Ltd deeply know the importance of the above two points and keep working towards the best indicator and until now the result is very satisfactory!