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Post-fermented tea

Sheng and shu: the dual soul of Pǔ'ěr tea

Pu'er is a living tea, crafted in Yunnan from the large-leaf tea tree and transformed by microbial fermentation. Its two paths — young, vibrant sheng and earthy, velvety shu — offer a spectrum of experience that evolves with every year in the cellar. Our collection spans single-village raw cakes, ripe bricks, and rare vintage pressings, each sourced from the very farms where leaf and land meet.

From ancient groves to pressed cakes

Pu’er originates in Yunnan’s mountainous south, where assamica tea trees grow wild and ancient, some centuries old. The picking season begins in spring, when buds and tender leaves are gathered, withered, pan-fired (kill-green), rolled, and sun-dried to produce máochá — the unfinished leaf. For sheng pu’er, this raw material is steamed and compressed into cakes, bricks, or tuo, then set aside to age naturally over years, even decades. Over time, enzymatic and microbial activity deepens its character, turning astringent youth into mellow complexity with notes of camphor, dried fruit, and wood. Shu pu’er takes a faster route: máochá is piled, dampened, and carefully controlled to accelerate fermentation over 45–60 days, resulting in a dark, earthy brew that is smooth and ready to drink immediately. Both styles share a common thread — the tea is never truly finished; it continues to breathe and change when stored properly. At our shop, each cake has been selected for its origin story and aging potential. Learn more about the science of fermentation on thetea.app, or deepen your practice with pu-erh brewing techniques in a live session at tea.school.

This season’s pu-erh selections

From a vibrant Yiwu sheng to a meticulously cellared vintage Bulang, these four pressings represent the breadth of pu-erh — and our commitment to direct sourcing.

A buyer's note

How to choose your pu-erh

Understand sheng vs. shu

Sheng (raw) is bright, grassy, and meant for aging; shu (ripe) is dark, smooth, and ready to drink now. Decide if you want a tea to drink today or to cellar for years.

Check compression

A well-compressed cake holds together but releases leaves easily with a pick. Avoid cakes that are too tight (hard to break) or too loose (may crumble in storage).

Consider storage history

Where and how a pu'er was stored — dry, humid, continental — shapes its flavor. Our Bulang vintage was cellared in Buryatia’s cool, dry climate, yielding a remarkably clean, mineral profile.

Start with a sample

If you’re new to a tea, buy a sample first. Sampling lets you experience the profile before committing to a full cake.

Use near-boiling water

Pu'er needs high heat to fully express its flavors. Bring water to a rolling boil (95–100°C) and pour directly onto the leaves.

Dose for gongfu or western style

For gongfu brewing, use 5–7 g per 100–150 ml and short steeps. For a larger pot, scale up to 2–3 g per 250 ml and steep 3–5 minutes.

Common questions

Asked, answered.

What’s the difference between sheng and shu pu'er?

Sheng (raw) is naturally aged over years, developing a complex, bright profile. Shu (ripe) undergoes accelerated fermentation, yielding a dark, earthy, mellow brew ready to drink immediately.

How should I store my pu'er cake at home?

Keep it away from strong odours, direct sunlight, and extremes of humidity. A breathable wrapping (like paper or cloth) in a cool, dry cupboard works well. Avoid plastic — the tea needs some airflow.

Can I drink pu'er every day?

Yes, pu'er is enjoyed daily by millions. Its moderate caffeine and unique microbial profile make it a comfortable all-day tea for many people.

How many infusions can I get from one session?

Pu'er leaves are large and resilient. With gongfu brewing, expect 8–15 infusions from a sheng cake and 5–10 from a shu, depending on dosage and steep times.

Is pu'er high in caffeine?

Pu'er contains caffeine, but the amount varies. A typical 5 g session yields roughly 30–50 mg per cup, less than a standard coffee. Shu tends to be slightly lower due to fermentation.

How do I break a pu'er cake without damaging the leaves?

Use a pu'er pick or knife. Insert the tip gently at the edge, then work it slowly to lever off a flake. Focus on loosening complete leaves rather than chipping off dust.