1. There is a problem with the quality of the vacuum bag itself. If it is not found in time, it may cause air leakage.
2. There is no sterilizing treatment when manufacturing the vacuum bag, and there may be air leakage.
3. The tightness of the vacuum bag. After the food is in the bag, the final process is to heat-seal the bag, and the quality of this process will directly affect the sealing performance of the food vacuum bag. If the final sealing is not strict, the food vacuum packaging bag will leak, and the air will penetrate into the vacuum packaging bag from the leaking part of the food vacuum packaging bag. This is another reason for the food to rise. If there is a leak in the vacuum bag, please stop it in time to avoid unnecessary trouble.