One sour and one spicy is the catering brand of Hangzhou Zhongchuang Catering Management Co., Ltd., and the soup base of one sour and one spicy beef powder is cooked with beef bone for eight hours. First-class grain-fed beef is carefully selected, supplemented by spices, and the beef is stewed with the exclusive sauce with a sour and spicy formula, which not only ensures the delicious and juicy beef, but also ensures that the auxiliary materials will not occupy its delicious taste.