Processing
Microbial transformation of tea leaves over months or years — the secret of pu-erh and dark teas.
True fermentation, driven by yeasts and bacteria, only happens in 'dark' teas (heicha) and pu-erh. It is biochemically distinct from oxidation. Shou pu-erh accelerates the process via wet-piling; sheng pu-erh ages slowly across decades.
Related terms
The browning of bruised tea leaves — the single most important variable defining tea type.
Microbially fermented tea from Yunnan — the only true 'aged' tea, often pressed into cakes.
The accelerated wet-fermentation method that creates ripe (shou) pu-erh in 45–60 days.
From the Journal
Sheng, shou, and the only tea family that genuinely improves over decades. A practical primer on the world's most rewarding (and confusing) tea.
by Sameera
The wild tea forests of Yunnan are still home to 1,000-year-old trees. A journey to the misty origin of every cup on Earth.
by Sameera
Emerging microbiome research suggests tea's complex polyphenols may feed beneficial gut bacteria in ways we're only beginning to understand. Here's what the science actually says—and which teas show promise.
by Sameera
Long before shipping containers and DHL Express, tea travelled the Silk Road in compressed bricks worth more than gold. The routes from Yunnan to Europe forged the supply chains we still depend on today.
by Sameera
Deep in China's southwestern mountains, ancient trees tell the story of where tea began. This is the landscape that shaped civilisation's most enduring ritual.
by Sameera
The Tea List dispatch
Slow reading for slow drinkers. No spam, unsubscribe in a single click.
