Lapsang Souchong is a variety of Chinese black tea known in China by the name Zheng Shan Xiao Zhong, it is produced exclusively in the area of ​​the Wuyi mountains, in the north of the Fujian region, in particular in the county of Tong Mu. It has whole leaves, black in color and slightly curled. The infusion is amber-orange in color. The caffeine content is relatively low.