Nowadays, many kinds of foods come into markets, sometimes may lead foods oversupply. So how to keep to foods fresh also becomes a big problem for businessmen. Because once the vegetables and fruits can not sold  immediately  in the first day, the next day it will become stale or rotten. To reduce money losses, many foods before be sale will  packaging will vacuum. Vacuum-packed foods can reduce the contact with the air to reduce the possibility of oxidation. So the vacuum packing machine is very important for a foods producing factory.  And what is the duble chamber vacuum packing machine? Double chamber vacuum packaging machine is one kind of packaging machines for vegetables, fruits, fishes, meats and other foods you want  to package in  your food processing factory. And what the working process about this machine? Firstly, this commercial double chamber vacuum packing machine uses its vacuum chamber to evacuate the bag , then filled with inert gas in order to achieve the purpose of anti-corrosion warranty. This machine can be controled with electric, more clean and save energy in the processing.