Fu tea, a type of fermented dark tea, has a long history in Xianyang of Northwest China's Shaanxi province. Fu tea features fermented golden probiotics, which is praised as "black gold along the Silk Road". The traditional tea making technique has 14 steps.

The city of Xianyang is the original place of Fu tea thanks to its unique geography and climate. As an important tea processing and entrepot city along the Silk Road, Xianyang boasts profound tea culture. The local government has given the traditional Fu tea processing technique a new lease of life through several ways, including gathering tea-makers, building up study base for this intangible cultural heritage, and integrating tea culture into tourism.