Suanmeitang, also known as Sour Plum Drink, is a popular traditional beverage in Beijing. It is made by steeping dried sour plums in hot water and adding sugar to taste. The resulting drink is tangy, refreshing, and slightly sweet. Suanmeitang is often enjoyed during hot summer days as it helps to quench thirst and cool down the body. It is a beloved local drink that showcases the unique flavors of Beijing.