The reasons for air leakage in food packaging bags are as follows: firstly, the bacteria in the food packaging bags will produce gas, which will cause the bags to swell. Therefore, the products should be sterilized thoroughly before leaving the factory.

食品包裝袋漏氣的原因二、密封性不夠。食物在裝袋后，首先要做的一道工序就是要對包裝袋進行熱壓封合，而這一道工序的質量凹凸會直接影響食物真空包裝袋的密封功用 。

The second reason of air leakage in food packaging bag is that the sealing property is not enough. After food is bagged, the first process to be done is to seal the packaging bag by hot pressing, and the quality of this process will directly affect the sealing function of food vacuum packaging bag.

假定畢竟封邊不嚴也會導致食物真空包裝袋漏氣，空氣從食品包裝袋漏氣部位滲透進入真空包裝袋。

It is assumed that, after all, loose edge sealing will also lead to air leakage in the food vacuum packaging bag, and air will penetrate into the vacuum packaging bag from the air leakage part of the food packaging bag.

如果是這種原因造成的漏氣，可以通過查看的辦法及時發現并控制包裝質量。如檢查食品包裝袋密封是否完好，在查驗過程中是否有氣泡從食物真空包裝袋封邊處漏出。

If it is the air leakage caused by this reason, we can timely find and control the packaging quality by checking. For example, check whether the food packaging bag is in good condition, and whether there are bubbles leaking from the sealing edge of the food vacuum packaging bag during the inspection process.