1, vacuum isolation technology: A number of vacuum preservation patents have been adopted for meat preservation, such as vacuum isolation technology, to prevent meat food from breeding microorganisms and prolong the preservation time of ingredients.

2. Fence technology: It was first put forward by the director of Institute of Microbiology and Toxicology of German Meat Research Center on the basis of long-term research to prevent the growth and reproduction of residual spoilage bacteria and pathogenic bacteria.