Abstract: Consumers have strict requirements for product quality and taste year by year. The diversification, complexity and cleaning effect of production equipment have a great impact on product quality. Ensure the quality of the dairy production process, discuss the cleaning effect of equipment, reduce sporadic deterioration of products, and reduce batch quality accidents.In this paper, the production process, equipment cleaning steps, cleaning parameter setting, and cleaning hidden danger point judgment were studied, and reasonable equipment cleaning parameters were formulated to master the equipment process. After combing the equipment and technology, identifying the hidden danger points, and improving the corresponding parameters, the quality problems and batch quality problems of the products were effectively improved. Through the implementation of this method, the cleaning effect of the equipment can be verified and the product quality can be effectively improved.

Key words: CIP, validation of cleaning, process drawing of equipment, step by step cleaning