According to the headline news Baiyue Yan Goodies, the total number of colonies is the total number of bacterial colonies generated by culturing a certain amount of examined samples under the specified conditions, which is expressed in colony-forming units (CFU). One of the indicators used to reflect the hygienic quality of food, not only as a sign of the cleanliness of the food, but also can be used to predict the duration of the storage resistance of the food.