The key techniques of vacuum pump in beef preservation mainly include the following points:

1.Vacuum packaging: Vacuum packaging achieved by a vacuum pump is an effective means to extend the shelf life of beef. Vacuum packaging can reduce the contact between beef and oxygen, inhibit the growth of microorganisms, and thus extend the shelf life.

2.Temperature control: Temperature control is crucial during the cold chain transportation and storage of beef. The vacuum pump can cooperate with cold chain equipment during the packaging process to maintain a suitable low temperature environment and slow down the growth of bacteria.

3.Modified atmosphere packaging: In addition to vacuum packaging, modified atmosphere packaging is also a common preservation technology. Vacuum pumps can be used in modified atmosphere packaging to further extend the shelf life of beef by adjusting the gas composition in the package.

4.Pre-cooling treatment: The vacuum pump plays a role in the pre-cooling stage, quickly lowering the temperature of the beef, reducing bacterial growth and extending the shelf life.

5.Cold chain logistics: Vacuum pumps are also used in cold chain logistics of beef. Vacuum technology is used to maintain low temperature and humidity during transportation to ensure the freshness of beef during transportation.

6.Cooperate with other preservation technologies: vacuum pumps can be used in combination with other preservation technologies such as ultra-high pressure treatment and irradiation preservation to form a comprehensive preservation solution and improve the preservation effect.

7.Rapid cooling: In the processing of cooked food, vacuum pumps can be used for rapid cooling. Through vacuum cooling technology, the temperature of food can be quickly reduced, bacterial growth can be reduced, and food safety can be improved.

8.Avoid secondary contamination: During the cooling and packaging process, the vacuum pump helps prevent bacteria in the air from causing secondary contamination to the food, ensuring food hygiene and safety.

Through the above tips, vacuum pumps play an important role in beef preservation, helping to improve the shelf life and food safety of beef.