How to use food vacuum packaging bags? How to draw air?

The main function of food vacuum packaging bags is to remove oxygen. In addition to inhibiting the growth and reproduction of microorganisms, another important function of food vacuum packaging bags is to prevent food oxidation, which is beneficial for preventing food spoilage. So, how to use food vacuum packaging bags? How to draw air?

Food vacuum packaging bag is a packaging method that adds food into an airtight packaging bag, extracts the air inside the bag, and seals it to achieve a predetermined vacuum degree. With the development of science and technology, vacuum packaging machines can enable one touch air suction operation for food vacuum packaging bags. In order to achieve good airtightness for food vacuum packaging bags, the following points should be noted during vacuum suction operation:

1. When heat sealing food vacuum packaging bags, it is important to note that there should be no residue such as oil, protein, or food on the sealing area to ensure that the seal can be fully heat sealed.
2. The sealing time is determined based on the vacuum degree required for vacuuming food. The vacuum time is generally adjusted at around 20-30 seconds, and the longer the time, the higher the vacuum degree. As the altitude of the usage area increases, the vacuum degree will decrease proportionally.
3. Adjust the sealing temperature and sealing time according to the material and thickness of the food vacuum packaging bag. Pay attention to the heat sealing delay of 6 seconds. Generally, the temperature of the double-layer composite film is adjusted to 2-3 levels, and the time is adjusted to 3-4 seconds. Test the temperature and time of various packaging materials first. As working hours increase, reduce gears or shorten time appropriately.

The above instructions on the use of food vacuum packaging bags and precautions for vacuuming have been compiled by Jinde Packaging. Jinde Packaging has been specializing in the processing of food vacuum packaging bags for 11 years, with rich experience and skilled technology. If you have any difficult questions about food vacuum packaging bags, please feel free to call us for consultation. Hotline: 15902743510