Pu-erh &
dark tea
The one tea that steps off the simple oxidation dial. Pu-erh is defined by genuine microbial fermentation and aging — the only tea widely bought, stored, and valued like wine.
What makes pu-erh different
Click through the category:
Why it’s off the dial
Every other type is placed by oxidation — an enzyme-and-air reaction finished in hours. Pu-erh adds microbial fermentation: living microbes transform the tea over months, years, or decades. That’s why it keeps changing in storage and why aged sheng can be extraordinary. Start with an approachable shou (ripe) — smooth and earthy — before tackling a challenging young sheng (raw). And rinse the leaf first: a quick discarded steep wakes the compressed cake.
Questions
Flashcards
Lock it in
From memory:
- What makes pu-erh unique among teas?
- Contrast sheng (raw) and shou (ripe) pu-erh.
- Why was shou pu-erh invented in the 1970s?
- Why is pu-erh treated as an aging asset?
- What is the "rinse," and why do it?
Comparative
technique
The oxidation spine becomes real when you taste along it. A flight arranged up the dial turns the abstract map into something your palate can feel directly.
Building a flight that teaches
The rule is the same as the wine, cheese, and whiskey courses: hold what you can constant, and change one variable deliberately.
Arrange along the dial
A green, a light oolong, a dark oolong, a black — tasted in that order — walks you straight up the oxidation axis. The progression is the lesson.
Control the brewing
Brew each correctly for its type (cooler for green, hotter for black), but keep leaf ratio and your method consistent. With tea, sloppy brewing can masquerade as a style difference.
Smell the wet leaves
For each, lift and smell the wet leaf — the "agony of the leaves" often shows the oxidation level more clearly than the liquor.
Reset between
Plain water and a brief pause. Note where each lands on the instrument before moving on.
Watch the shift
Track how sweetness, body, and flavor family move as oxidation climbs — vegetal to malty, thin to full.
Walk up the dial
Line up your teas from least to most oxidized and taste in order. The dial you learned in Session 1 should now be something you can taste, not just recite — that shift from concept to palate is the whole point of comparative work.
Questions
Flashcards
Lock it in
From memory:
- How should a flight be arranged to teach the oxidation spine?
- Why must brewing be controlled in a tea flight especially?
- What can the wet leaf reveal in a comparison?
- How do you reset between teas?
- What should you track as oxidation climbs across the flight?
Brewing
parameters
In tea, you perform the final production step. Four levers — temperature, ratio, time, and water — decide whether great leaf becomes a great cup or a bitter one. This is the session that fixes most "bad tea."
The four levers
Click through the parameters that control extraction:
How much leaf? — and the real lesson
Use the calculator to see leaf quantity for your pot, then read the caveat carefully:
When a cup is bitter or harsh, don’t blame the tea — adjust brewing in order: temperature first (too hot is the usual culprit), then time (shorten it), then ratio. Most "bad tea" is bad brewing. This is the payoff of tea being the one subject where you finish the production yourself: the biggest quality lever is in your hands, every single cup.
Questions
Flashcards
Lock it in
From memory:
- Name the four brewing levers.
- What water temperature suits delicate greens vs black/pu-erh?
- What is the fix-it order for a bitter cup?
- Why does water quality matter so much?
- Why is brewing more consequential in tea than serving is in wine or whisky?