Introduction to Oolong Tea in the Qing Dynasty: The Qing Dynasty was the era when Wuyi Tea reached glory. In the late Kangxi period, Wuyi tea gradually formed a new type of rock tea production technology, namely oolong tea production technology. Oolong tea, represented by Dahongpao's "three reds and seven greens", has deeply won people's love for its gentle and mellow rock flavor, and was praised by Emperor Qianlong as "the best in Wuyi".