The yeast expansion system is used to expand the cultivation of yeast used in the production of industrial breweries, and can effectively preserve various yeasts on the production site to ensure the pure breed of yeast used in beer production. The equipment produced by our company can meet the needs of various industrial breweries for different yeasts, and can also be designed according to customer requirements. It can ensure that the yeast produced has a high activity, and the yeast strain can also be effectively preserved. So far, it has provided the design, manufacture and installation of a complete production line for several large and medium-sized breweries such as Shandong Qingyuan Beer Co., Ltd., Jinan Baimaiquan Brewery, Hebei Hengshui Jiuzhou Beer Co., Ltd.