What makes hei cha different?
Dark tea traces its roots to the Tang dynasty, but the category as we know it crystallised in the Ming and Qing eras along the tea-horse roads. Today, the main hei cha centres are Anhua county in Hunan and the Liù Bǎo area of Guangxi. Unlike green or oolong, hei cha is deliberately fermented with the help of beneficial microorganisms — a process called wò duī. After kill-green and rolling, the leaves are piled, moistened, and left to undergo a controlled microbial transformation that can last weeks. The teas are then compressed into bricks (Fú Zhuān), rolled into logs, or packed in bamboo baskets (Liù Bǎo) to age further.
Harvested later in the season, from larger, coarser leaves, hei cha builds its character through time. A fresh brick exhibits musty, earthy tones, but years of aging mellow it into deep sweetness, often with notes of dried jujube, camphor, and a smooth, almost creamy texture. The famous ‘golden flowers’ — a bloom of Eurotium cristatum mould — develop naturally in well-made Fú Zhuān and contribute to its digestive reputation. For a deeper dive, visit the hei cha entry on thetea.app or explore aging science in our tea.school masterclass.
Our hei cha selection
Three hei cha expressions sourced directly from Anhua and Liù Bǎo, each chosen by dark tea specialist Amgalan Chin for its authenticity and ageing potential.