Pasteurization of milk was invented by French Pasteur in 1865 and improved by later generations. It is used to completely kill pathogens in beer, wine, milk, serum albumin and other liquids, and it is also a common milk disinfection method in the world. Louis LouisPasteur) (1821-1895.9.25) was a French microbiologist and chemist and the founder of modern microbiology. Like Newton pioneered classical mechanics, Pasteur pioneered the field of microbiology, and he was also a scientific giant. Pasteur, one of the most accomplished scientists in the 2119 century, has made many exploratory studies and achieved great results. He spent his whole life trying to prove three scientific problems: (1) Every fermentation is due to the development of a microorganism. The French chemist found that heating can kill those annoying microorganisms that make beer bitter. Soon, "pasteurization" was applied to all kinds of foods and drinks. (2) Every infectious disease is the development of a microorganism in the organism: Pasteur saved the French silk industry by discovering and eradicating a bacterium that invaded silkworm eggs. (3) Microorganisms of infectious diseases can reduce their virulence under special culture, so that they can be transformed from germs into drug vaccines for disease prevention. He realized that many diseases were caused by microorganisms, so he established the theory of bacteria. Louis Pasteur is praised by the world as "the most perfect person to enter the kingdom of science". He is not only a theoretical genius, but also a person who is good at solving practical problems. His two papers published in 1843-"Study on Twin Phenomena" and "Crystalline Morphology" initiated the study of optical properties of matter. From 1856 to 1861, he put forward a new theory of fermentation essence based on microbial metabolic activities, and the "Record on Lactic Acid Fermentation" published in 1857 was a classic paper recognized by microbiology. After 1881, a variety of vaccines, such as chicken cholera vaccine and rabies vaccine, were successfully developed, and their theory and immunization method caused great changes in medical practice. In addition, Pasteur's work also successfully saved the wine industry, sericulture and animal husbandry in France. Pasteur is regarded as the most important outstanding figure in the history of medicine. Pasteur's contribution involves several disciplines, but his reputation focuses on defending and supporting germs and developing vaccination to prevent diseases. Pasteur was not the earliest discoverer of germs. Before him, Kirula, Bao Henry and others had put forward similar assumptions. However, Pasteur not only enthusiastically and bravely put forward the theory about germs, but also proved the correctness of his theory through a large number of experiments, which convinced the scientific community. This is his main contribution. Obviously, the cause lies in bacteria, so it is obvious that only by preventing bacteria from entering the human body can we avoid getting sick. Therefore, Pasteur emphasized that doctors should use disinfection. Joseph Sinter, who proposed to the world to use disinfection in surgery, was influenced by Pasteur. Toxic bacteria enter the human body through food and drink. Pasteur developed a method of sterilization in beverages, which was later called pasteurization (heat sterilization). At the age of 51, Buster focused his attention on malignant carbuncle marks. It is an infectious disease that harms livestock and other animals, including people; Pasteur proved that the cause was a special kind of bacteria. He injected animals with attenuated Corynebacterium malignant carbuncle.