3 hours. Yogurt Anmuxi is a milk product that is pasteurized and then added with beneficial bacteria to the milk, and then cooled and filled. At a high temperature of 30 degrees, the bacterial colonies will die within 3 hours, causing the yogurt to deteriorate and cannot be drunk. . Anmuxi is a brand of Inner Mongolia Yili Industrial Group Co., Ltd. and is a Greek-flavored yogurt.