Dark tea (post-fermented) tea
Microbially fermented and mature, offering deep, smooth, earthy, and soothing warmth.
Liquor colour: Oxblood to near-black
How it is made
Dark tea, including historic pu'erh and provincial hei cha, begins as a rustic sun-dried green tea base called mao cha. The crucial transformation occurs through genuine microbial post-fermentation involving moulds, yeasts, and bacteria under humid conditions. In traditional raw styles, this secondary fermentation proceeds slowly over decades of dry storage. In modern ripened styles, leaves are stacked in large heaps, dampened, and covered with thermal blankets for several weeks, accelerating the fermentation via controlled heat and humidity before final drying.
What it tastes like
Microbial breakdown converts tannic astringency and bitter catechins into mild, highly digestible organic acids and polysaccharides. This completely eliminates sharp bitterness and raw vegetal bite, replacing them with remarkable depth. The brew offers aromatics of damp earth, forest loam, wet stone, ancient wood, worn leather, and sweet beetroots. The mouthfeel is famously thick, comforting, and viscous, gliding down the throat with zero throat-catching dryness and leaving a deep, grounding warmth throughout the chest.
Caffeine and brewing
A typical cup provides an estimated 30 to 60 mg of caffeine, which remains remarkably stable through aging. Rinse briefly with boiling water at 100°C before brewing, then infuse for multiple short, full-boil rounds.
Good for
It suits drinkers who cherish grounding, earthy profiles and exceptionally smooth, soothing brews after heavy meals.
Two common misconceptions
- Dark tea is not rotten or spoiled; the microbial fermentation is food-safe and strictly managed, akin to fine cheese.
- Not all dark tea is pu'erh; pu'erh is a specific regional dark tea originating exclusively from Yunnan province.
40 dark tea (post-fermented) teas
- D-CN-008 Menghai Pu-erh
China, typical 55 mg - D-CN-013 Pu-erh Mini Nest
China, typical 40 mg - D-CN-003 Shou Pu-erh (Ripe)
China, typical 45 mg - D-CN-006 Bulang Pu-erh
China, typical 60 mg - D-CN-018 Pu-erh Chrysanthemum Blend
China, typical 35 mg - D-CN-012 Pu-erh Tuocha
China, typical 45 mg - D-CN-001 Sheng Pu-erh (Young Raw)
China, typical 55 mg - D-CN-025 Hunan Fu Zhuan Brick
China, typical 35 mg - D-CN-028 Hunan Hei Zhuan
China, typical 40 mg - D-CN-010 Jingmai Pu-erh
China, typical 50 mg - D-CN-023 Liu Bao (Young)
China, typical 45 mg - D-CN-024 Liu Bao Basket
China, typical 40 mg - D-CN-021 Pu-erh in Lotus Leaf
China, typical 45 mg - D-CN-019 Pu-erh Tangerine Peel (Chenpi)
China, typical 40 mg - D-CN-004 Shou Pu-erh Palace Grade
China, typical 55 mg - D-CN-007 Yiwu Pu-erh
China, typical 50 mg - D-CN-016 Ancient Tree Raw Pu-erh Cake
China, typical 50 mg - D-CN-029 Anhua Dark Tea Cake
China, typical 40 mg - D-CN-033 Butter Tea Base (Po Cha)
China, typical 40 mg - D-CN-032 Hubei Qing Zhuan
China, typical 35 mg - D-CN-026 Hunan Qian Liang (Thousand Tael)
China, typical 40 mg - D-CN-027 Hunan Tian Jian
China, typical 45 mg - D-MM-040 Lahpet (Burmese Fermented Tea)
Myanmar, typical 0 mg - D-CN-005 Lao Man E Pu-erh
China, typical 65 mg - D-LA-034 Laos Dark Tea
Laos, typical 50 mg - D-CN-022 Liu Bao (Aged)
China, typical 40 mg - D-CN-020 Pu-erh in Bamboo
China, typical 45 mg - D-CN-014 Pu-erh Loose Leaf (Mao Cha)
China, typical 55 mg - D-CN-017 Pu-erh Orchid Fragrance
China, typical 45 mg - D-CN-002 Sheng Pu-erh (Aged 15+ years)
China, typical 45 mg - D-CN-031 Sichuan Kang Zhuan
China, typical 35 mg - D-TW-036 Taiwan Aged Dark Tea
Taiwan, typical 35 mg - D-VN-035 Vietnamese Dark Tea
Vietnam, typical 50 mg - D-CN-015 Wild Arbor Pu-erh
China, typical 60 mg - D-CN-011 Xigui Pu-erh
China, typical 55 mg - D-CN-030 Ya'an Tibetan Brick (Zang Cha)
China, typical 35 mg - D-JP-037 Awabancha
Japan, typical 20 mg - D-JP-039 Batabatacha
Japan, typical 20 mg - D-CN-009 Bingdao Pu-erh
China, typical 50 mg - D-JP-038 Goishicha
Japan, typical 20 mg