Vacuum packaging equipment mainly refers to vacuum packaging machines, which can automatically extract air from packaging bags and complete the sealing process after reaching the predetermined vacuum degree. Alternatively, nitrogen or other mixed gases can be added and the sealing process can be completed. Vacuum packaging machines are often used in the food industry because after vacuum packaging, food can resist oxidation and achieve long-term preservation. Vacuum packaging machines are mainly divided into two types: internal suction and external suction. Among them, internal extraction can be divided into various types such as single chamber, double chamber, desktop, and tea vacuum packaging machines, which are more common.