What kind of tribute tea does Feng Wu Tuantuan Tea refer to in Pinling Yong Tea?

Longfeng tea. In Huang Tingjian's "Tasting Tea Ci", he danced with the phoenix to make cakes, and hated breaking the religious orders. Tea cakes are carefully ground into jade powder by clean tea cakes, but the purity of tea powder is pure, clear and crystal clear. With good water, the sound of boiling soup is like the wind, and in the pine forest, it has a somewhat intoxicating meaning. This is a poem about tea. In the poem, the author shows the preciousness and love of Longfeng tea. The first sentence of the word "Feng Wu Tuantuan Cake" refers to Feng Bingcha in Longfeng Tuancha, which is extremely precious. It is a famous royal tribute in Song Dynasty, the highest in tea and world-famous. Tea drinking by the royal family in Song Dynasty was more prosperous than that in Tang Dynasty. Song Taizu and Zhao Kuangyin like tea very much, and his successor also likes tea.