Song Dynasty, called "Nengrui", for the steamed green loose tea, the 1990s resumed the successful trial production called "Xian Yu Xiangzha". According to the legend of local tea farmers, this bud tea in the Qing Dynasty called "fog green". Produced in the South Anhui Buddhist sacred Jiuhua Mountain and the national nature reserve Gu'niujiang and its surrounding areas, the main production area is located in Shidai County Kotian, Zhandai, the big performance area.

Misty Qing (buds and stamens tea) quality characteristics: full buds fat and tender, velvet hair disclosure, tender fragrance persistent, taste fresh and mellow, soup color light yellow and bright, the bottom of the leaf green and intact. The standard of fresh leaves is whole buds, buds are fat and strong, bud length 15~20mm.