Pasteurized fresh milk is milk that is processed by means of the pasteurization method. Low-temperature pasteurization technology (using a temperature between 75℃ To 85℃) is used to ensure the safety of the milk, while at the same time preserving living matter and nutritional value. This aids in the body’s absorption of calcium. The pasteurization method was invented by French microbiologist Louis Pasteur. This method kills pathogens and harmful bacteria in the milk. After pasteurization, only some heat-loving and heat-resistant bacteria remain; these mainly consist of lactic acid bacteria, which are beneficial to humans. During the whole process, from production to consumption, pasteurized fresh milk needs to be kept in cold storage. It has a shelf life of three to seven days.