Green bean soup overnight if well preserved, no deterioration is drinkable; if not properly preserved is not recommended for consumption. Green bean soup if cooled, covered with plastic wrap refrigerator overnight, green bean soup does not appear to deteriorate, change the flavor of the case, can be reheated through, is drinkable. If not put in the refrigerator, especially in the hot season, is likely to cause deterioration, leading to bacterial growth produce toxic and harmful substances, so it is recommended not to drink. In order to prevent the green bean soup spoilage, taste, when cooking green bean soup, should be based on the number of people and the amount of food into a reasonable arrangement, it is best to one-time consumption, to avoid causing unnecessary harm to the human body, to maintain good health.