Because bean juice has a foul smell, is bitter and astringent, and feels like a bowl of thick soup that has been drunk for a long time, or it can be said to be like broken drinking water. Many outsiders may not be able to bear it and do not think it is a good drink. You can drink the food. In addition, the color of the bean juice is gray-green, and some outsiders also think that the taste is not too good, so naturally they cannot accept it. In fact, there is a good saying: "If you don't drink soy juice, you can't be considered an authentic Beijinger." This can truly reflect the status of Douzhier in Beijing snacks, but in fact the taste of Douzhier is not acceptable to everyone. So why did such a magical thing as douzhier become a royal banquet in the palace during the Qianlong period?

The first is the origin of bean juice. It has a long history and is said to have become a popular food during the Liao and Song Dynasties. But during the Qianlong period, soybean juice was introduced to the palace and became a drink for the royal banquet. Bean juice is an out-and-out delicacy in Beijing, and old Beijingers don’t have a slight preference for it. Bean juice is an indispensable food for Beijing locals. But to outsiders, bean juice is a dark cuisine. First of all, in terms of smell, it smells terrible, is bitter and astringent in the mouth, and feels like a drink that has gone bad for a long time. This is also the reason why most foreigners don’t have a good impression of soybean juice.

But bean juice has been developed for many years. Legend has it that it became one of people's favorite foods during the Liao and Song Dynasties. In the Qing Dynasty, in the 18th year of Qianlong's reign, it was changed to a palace banquet for ministers. Later, with the changes in society, soybean juice once became a staple food for the poor. Maybe in the early days of liberation, there was a bean juice stall on Beijing Tianqiao. The people who have been buying soy juice for many years are basically poor people. They bought a bowl of bean juice for two cents, and the stall also gave some pickles. They broke the steamed bun in half and soaked it in the bean juice. It was dry and thin, and it was considered a meal. Beijing locals have also gradually fallen in love with this eating habit and drink soy juice.

In fact, regardless of whether outsiders can accept the food culture of Douzhier, since it has been circulating for so long, it certainly has its benefits. It is rich in vitamin C, crude fiber, and carbohydrates, and has the effects of clearing heat and detoxifying, strengthening the spleen and appetizing, removing dampness and reducing swelling. Drinking a cup of soy juice in the morning can replenish energy to the body. In any case, Beijing bean juice firmly occupies a place as an authentic part of Beijing’s food culture, which shows that it still has its shining points. Our country has a vast territory and rich resources, and the food culture in different places is different. For outsiders, even if they cannot accept it, they must respect it.