In Bhagawadgita, Lord Krishna says that the food we prepare must be consumed within first three hours after its preparation. A person who consumes food within the first three hours happens to be a Good person. A person who consumes the food from three hours to as long as it is good to eat seems to be a person with passion. A person who consumes food after it has gone bad has problems in his life and can be after something.
In Bhagawadgita, human beings are classified as three types, the Good, the average and the passionate.