Dark tea / Hei Cha processing

Dark tea (hei cha, 黑茶) is the Chinese tea category covering post-fermented teas outside the pu-erh tradition. Multiple regional traditions sit within the category: Liu Bao (六堡) from Wuzhou in Guangxi (basket-aged), Anhua Hei Cha from Hunan (often pressed into bricks), Tibetan brick tea (compressed for trade-route transport), Fu Zhuan (with Eurotium cristatum "golden flower" microbial growth), and others. Each has its own processing tradition, but all share the common feature of substantial microbial post-fermentation that distinguishes them from green, white, oolong, or black tea.

Dark teas served specific historical roles in Chinese tea culture — particularly along the ancient Tea-Horse Road trade routes where compressed dark tea bricks could withstand months of transport to Tibetan, Mongolian, and Central Asian markets. The same compression-and-aging design that worked for trade-route logistics also produced tea with distinctive aging characteristics. The cup character emphasizes earthy and sweet notes (plum and longan especially common), smooth body, and a less aromatically complex but distinctive profile compared to pu-erh. Liu Bao has become particularly popular in modern specialty tea markets — Crimson Lotus, Yunnan Sourcing, White2Tea, and others carry it alongside their pu-erh selections. The category overall remains less internationally recognized than pu-erh but has serious editorial significance within Chinese tea tradition.

Key processing steps

1. Standard initial processing (kill-green, rolling)
2. Microbial fermentation through specific regional techniques (varies by tradition)
3. Often pressed into bricks, baskets, or compressed forms for transport
4. Extended storage and aging — many dark teas continue to develop over years

Tea categories produced

Cup signature

Earthy, sweet, often plum/longan character. Smooth body; less aromatic complexity than pu-erh but distinctive.

Typical origins