Shú pǔ'ěr děngjí

Ripe (熟) pu’er is evaluated not so much by region as by the tenderness of the raw material laid into wet-piling. The scale runs from the highest “palace” grade gōngtíng down to coarse 九级 — and it is this scale that determines the appearance, price, and purpose of the finished tea.

What is actually being graded

In the world of sheng (生) pu’er, the discussion usually revolves around terroir, bush age, and harvest season. In the world of shou (熟) pu’er, the central focus is the tenderness grade of the raw material that has undergone the key operation of 渥堆 wòduī (wet-piling). In other words, grading here is a scale of how young and tender the leaves and buds were that were fermented in the pile.

The standard sequence is arranged as follows:

宫廷 gōngtíng > 特级 tèjí > 一级 yījí > 三级 sānjí > 五级 wǔjí > 七级 qījí > 九级 jiǔjí

The logic is simple: the smaller the number, the more tender the raw material. The odd numbers (一/三/五/七/九) are the main supporting steps of the scale; above them are built two “premium” classes — 特级 and the highest, 宫廷. Standing apart is 老茶头 lǎo chá tóu — not a grading step, but a by-product of the same wet-piling process.

Raw material: Yunnan large-leaf tea

One botanical foundation underpins this entire scale — 云南大叶种 Yúnnán dàyèzhǒng, the Yunnan large-leaf variety of the tea bush. This is the same raw material base as that of sheng pu’er, but with an important adjustment regarding plantation origin.

For mass-market shou, 台地 táidì is most commonly used — leaf mass from terraced, densely planted, relatively young plantations. This is a rational choice: wet-piling requires a large and homogeneous volume of raw material, and terrace tea provides exactly that. A premium segment appears less frequently — 古树熟 gǔshù shú, ripe pu’er from old tree gǔshù leaves; such material is more expensive and goes into limited batches.

The large-leaf variety is particularly important for shou: its thick, rich leaf carries a large reserve of extractives and pectins, which transform during wet-piling and yield the characteristic density of the infusion and a “sweet-earthy” profile.

渥堆: The operation that makes shou — shou

The fundamental distinction between ripe and raw pu’er is 渥堆 wòduī, wet-piling. It is this stage, not the age of storage, that separates shou and sheng.

Technologically, the leaves are raked into a large moistened pile, where controlled microbial fermentation is initiated. The dominant microflora of the process is black aspergillus 黑曲霉 hēi qūméi (Aspergillus and associated species). This microflora drives what is known as 后发酵 hòu fājiào — post-fermentation, during which, over the course of weeks, a transformation is achieved that would take sheng pu’er years of natural aging.

The tenderness grade is established at the entry point to this operation: 宫廷-grade material consists of selected, most tender buds and tips, whereas 九级 is coarse, mature leaf. After wet-piling, the differences in tenderness are preserved in the finished product, determining both appearance and taste.

Breakdown of the grades

宫廷 (gōngtíng) — the highest class of shou. This is the most tender material from wet-piling: predominantly single buds (单芽) and extremely young leaves, abundantly covered with golden down — 金毫 jīn háo. The name alludes to the idea of an imperial, select tea. Visually, it is a small, dark, tightly twisted mass with noticeable golden flecks.

特级 (tèjí) — “special grade,” very tender raw material. No longer purely bud material, but still young and fine leaf with buds. This is a step down from 宫廷, yet still the upper segment of the scale.

一级 / 三级 / 五级 (yījí / sānjí / wǔjí) — the middle, workhorse part of the sequence. As the number increases, tenderness decreases: more developed leaf, fewer buds, a coarser structure of the tea leaves. These are the “classic” grades upon which a significant portion of the assortment is built — from pressed cakes to loose tea.

七级 / 九级 (qījí / jiǔjí) — coarse raw material, the lower part of the scale. This is mature, large leaf, used primarily for mass-produced pressed bricks 熟砖 shú zhuān. Such material is valued for its infusion density, pronounced “earthy” base, and resilience to multiple infusions, rather than for delicacy.

老茶头 (lǎo chá tóu) — stands apart. This is not a grade, but a by-product of wet-piling: during fermentation, the pectin-rich (果胶) leaf lumps together in places into dense nuggets. These nuggets are sorted out and sold separately as an independent product. Their characteristic feature is a very dense brew, pronounced sweetness, and almost endless extractability due to the pectin-compressed structure.

Standards

The grading scale for shou pu’er is part of the official (O) system for evaluating raw material and finished product. The steps themselves (宫廷, 特级, odd numbers) and their connection to the degree of tenderness are fixed in the normative practice of the industry. Specific numerical indices of standards are not cited here to avoid substituting guesswork for norm; it is important to understand the principle — this is a tenderness gradation of piled material, not a marketing ladder.

Taste and brewing

The infusion profile changes systematically along the scale.

• 宫廷 and 特级 yield a cleaner, smoother, “velvety” infusion with notes of dried fruit, dark sugar, and a soft woody-earthy base; the body is dense but silky.
• 一—五级 — a balance between body and earthiness; the infusion is richer in color and denser, with a recognizable “cellar” and woody palette.
• 七—九级 — the most “earthy,” robust profile, with a coarser density; this tea forgives boiling water and long steeps.
• 老茶头 — a separate story: a very thick, sweet, oily infusion that unfolds slowly and endures dozens of steepings.

General brewing principles for all grades: water at a full boil (around 100 °C), an obligatory quick rinse of the dry leaf (one or two short rinses to “awaken” the compressed piled leaf and remove dust), followed by short steeps in a gaiwan or Yixing teapot with a gradual increase of time. Coarse grades and 老茶头 require a slightly longer contact with water than delicate 宫廷.

How to distinguish in practice

• Dry leaf. 宫廷 — small, dark, with abundant golden down 金毫; the higher the number, the larger and coarser the tea leaves, the less golden flecking. 老茶头 is recognized immediately — dense, irregular nuggets.
• Infusion color. For all shou, the infusion is dark, red-brown; tender grades give a more transparent and bright tone, coarse grades — a deeper and denser one.
• Body and texture. High grades — smoothness and “velvet”; lower grades — density with a coarser base; 老茶头 — maximum viscosity.
• Source of material. Understanding whether you have mass-market 台地 or rare 古树熟 helps calibrate expectations: a premium shou from old trees, at an equal tenderness grade, will be deeper and more complex.

The main thing to bear in mind: shou pu’er grading is a scale of tenderness for the piled raw material, not an assessment of “quality” in an absolute sense. A coarse 九级 brick can be an excellent daily tea, while a tender 宫廷 can be refined, but not always more “profound.” Choosing by grade is choosing a style, for which one then selects water, teaware, and brewing rhythm.