Food has its own shelf life. If you do not pay attention to the preservation of food, bacteria will occur and cause food to spoil. Some spoiled foods cannot be eaten. In order to preserve food products for a long time, the food industry not only adds preservatives to extend the shelf life, but also uses steam engines to generate steam to sterilize food after packaging in a vacuum environment. The air in the food package is extracted and sealed to maintain the air in the package. If it is scarce, there will be less oxygen, and microorganisms cannot survive. In this way, the food can achieve the function of preserving freshness, and the shelf life of the food can be extended.
Generally, cooked foods like meat are more likely to breed bacteria because they are rich in moisture and protein and other nutrients. Without further sterilization after vacuum packaging, the cooked meat itself will still contain bacteria before vacuum packaging, and it will still cause spoilage of the cooked meat in the vacuum packaging in a low-oxygen environment. Then many food industries will choose to further perform high-temperature sterilization with steam generators. Food treated this way will last longer.
Before vacuum packaging, food still contains bacteria, so the food must be sterilized. So the sterilization temperatures of different types of food are different. For example, the sterilization of cooked food cannot exceed 100 degrees Celsius, while the sterilization of some foods must exceed 100 degrees Celsius to kill bacteria. The steam generator can be adjusted according to different needs to meet the sterilization temperature of different types of food vacuum packaging. In this way, the shelf life of food can be extended.
Someone once did a similar experiment and found that if there is no sterilization, some foods will accelerate the rate of spoilage after vacuum packaging. However, if sterilization measures are taken after vacuum packaging, according to different requirements, the Nobest high-temperature sterilization steam generator can Effectively extend the shelf life of vacuum packaged food, ranging from 15 days to 360 days. For example, dairy products can be stored at room temperature within 15 days after vacuum packaging and steam sterilization; smoked chicken products can be stored for 6-12 months or even longer after vacuum packaging and high-temperature steam sterilization.
Post time: Dec-13-2023
