In ancient times, the emperor's meal was a top priority. Many dishes that should not be ignored are always spicy. If the emperor wants to eat, he must serve, and if he is not careful, he will be punished.
There are so many dishes every day that the emperor can't finish them. what should he do ？ Sometimes when there are ministers in the palace, they will eat together, and most of the time there are many left. In ancient times, some restaurants would say that their chefs came from the imperial chef, which would attract many customers to taste. But in fact, it's not because there are chefs in their royal chefs, but what the emperor can't finish is sold to the palace for profiteering.
There are many people involved in selling things that the emperor can't eat to the people because it is easy to get money. Sell the seemingly good leftovers of the emperor to the restaurant, and then the restaurant sells them at a high price. How many times will the price be doubled? Those ugly leftovers are sold to people outside the palace at low prices. These people mix these dishes with porridge and sell them to some ordinary people. Although the price is not expensive, they are still delicious.
Although this matter can't be put on the table, it won't waste food, so that the emperor doesn't have to throw away a lot of leftovers. In ancient times, food was still scarce, so that some people who could not eat could fill their stomachs.
In short, the things that the emperor can't eat are generally not thrown away directly, but sold outside the palace, which is a truth that many people understood at that time.