A worker deals with vine tea leaves at a cooperative in Laifeng County, central China's HubeiProvince, May 23, 2018. Laifeng vine tea, made from vine leaves of ampelopsis plants, has been recognized as a national geographical indication product in 2013. [Xinhua/Song Wen]

A worker dries vine tea leaves in Laifeng County, central China's Hubei Province, May 23, 2018.[Xinhua/Song Wen]