Bean juice is an old brand, "a good place to taste authentic bean juice". Bean juice is green and tasteless-it is very thick and pure, and there is no particularly strong sour taste at the entrance. I don't go home until I drink two or three bowls. The storefront is "small", but the rice mouth is "crowded" and "the most ordinary Beijingers". As soon as you enter the door, "it will take you back to the years when you queued for dinner more than ten years ago." Just like Degang Guo's cross talk, you can tell whether you are from Beijing or not by drinking bean juice!