The Cause of The Expansion of The Vacuum Bag

At present, it is relatively safe to pack food with vacuum packaging, and there will often be bag expansion in life. So what is the reason why the vacuum packing belt expands?

The sealing of vacuum food bags and the permeability of the bags. Food in the bag, the last process to the bag to be hot-pressed sealing, and the quality of this process will directly affect the sealing performance of the bag. If the last seal is not strict, it will cause the bag to leak air, air will penetrate from the air leakage area of the bag into the vacuum bag. The excessive permeability of vacuum food bags is another reason for food bags to rise.

Transport process and the storage temperature of the seller's warehouse, many products because of room temperature interruption of more than 37 degrees Celsius, a cold and a hot, internal condensate and other causes.

Reactions between food additives produce gas or food additives react with ingredients to produce gas.