Old Green Base

Classification and Origin

Classification origin: Origin and Terroir

The heart of production is the small town of 羊楼洞 (Yánglóudòng) in a county that today bears the name 赤壁 (Chìbì, "Red Cliff"), and before 1998 was called 蒲圻 (Púqí). Administratively, this is the south of Hubei, the 咸宁 (Xiánníng) district — a hilly, humid zone at the junction of rivers and low mountains of the Yangtze basin.

The climate here is subtropical monsoon: abundant summer rains, a warm long autumn, frequent fogs in the ravines. The soils are weathered red soils and yellow soils on shale and sandstone rocks, acidic and well-drained. It is precisely the combination of humidity and sufficient warmth that allows the bush to grow a large, dense leaf with a high polyphenol content — that very coarse raw material which in delicate green teas would be considered overgrown, but here is the norm and even a virtue.

The historical significance of Yangloudong extends beyond a single county: from here stretched the "Great Tea Road" (万里茶道, wànlǐ chádào) — a caravan and river artery along which pressed tea went through Hankou (汉口) to the north, to Mongolia, Siberia, and further to Russian markets. This outward orientation defined the entire technology: the tea was made transportable, long-storing, and suitable for boiling with milk and salt.

History and Culture

History culture: Cultivar

The basis of the Hubei old green base is a local population variety — 本地群体种 (běndì qúntǐ zhǒng), a southern Hubei bush landrace that formed over centuries around Yangloudong and Puqi. This is not a clone, but a mixed seed population with broad genetic variability: diverse leaf shapes, hardiness, and the ability to yield a mass of coarse, polyphenol-rich leaf.

For green brick tea, such a cultivar is ideal: the task is not the tenderness of the bud, but a mature multi-leaf shoot that withstands 渥堆 (wòduī, wet piling), subsequent pressing, and many years of maturation.

Botany and Raw Material

Botany material: Technology

The manufacture of 老青茶 fundamentally differs from that of delicate green teas and proceeds with two "tiers" of material, which will later be separated in the brick.

Basic sequence:

• **杀青 (shāqīng)** — Fixation, stopping enzymes by heat, as with green tea, but adjusted for coarse raw material.
• **揉捻 (róuniǎn)** — Rolling, destroying the cellular structure of the leaf.
• **渥堆 (wòduī)** — The key step of dark tea: the leaf mass is piled into moist heaps and allowed to undergo microbial-fermentative "post-fermentation." Here the dark color, softness, and characteristic aged tone are born.
• **复揉 (fùróu)** — Re-rolling after the piling.
• **晒干 (shàigān)** — Drying, traditionally in the sun.

As a result, raw material of several categories is obtained, which is layered during brick production:

• **面茶 (miànchá)** — The "face" tea, more selected, used for the top and bottom outer layers; sometimes also used for 洒面 (sǎmiàn) — a sprinkle for the facing surface.
• **里茶 (lǐchá)** — The "inner" tea, coarser, fills the middle of the brick.

The finished old green base is steamed and pressed into molds. The Hubei tradition knows several forms (形制, xíngzhì): brick (砖, zhuān), loose tea (散, sǎn), baskets and woven packs (篓/篮, lǒu / lán), as well as tea "columns" (柱, zhù). The brick form dominates — dense, rectangular, convenient for transport by caravans.

On some Hubei products, as in the 茯砖 (fú zhuān) line from Anhua and Shaanxi, 发花 (fāhuā)

Terroir

Terroir: Standards and Categories

老青茶 belongs to the category of dark teas (黑茶) and to the group of pressed teas (紧压茶, jǐnyāchá). The production of the raw material and the finished green brick is governed by a series of industry-specific national GB/T standards, which fix raw material categories (面茶 / 里茶), pressing parameters, moisture content, and organoleptic properties. The specific standard numbers are intentionally not provided here, so as not to substitute the document from memory.

An important classification is by distribution channel, which historically determined the recipe and grade:

• **边销 (biānxiāo)** — "Border trade," the main historical channel: tea for the pastoral peoples of the north and northwest.
• **侨销 (qiáoxiāo)** — For overseas Chinese communities.
• **内销 (nèixiāo)** — Domestic market.
• **出口 (chūkǒu)** — Export.

Another axial characteristic is aging: Hubei dark teas are of the type 越陈越好 (yuè chén yuè hǎo), "the older, the better," and with proper storage, they gain depth over the years.

Production

Production: Taste and Brewing

The infusion of the old green base and green brick tea is dark orange to reddish-brown, transparent in aged samples. The taste is dense, soft, without the sharp astringency of young green tea: tones of aging (陈, chén), wood, dry leaves dominate, sometimes a mild sweetness in the aftertaste. If 金花 is present, a characteristic "fungal" (菌香, jūn xiāng) aromatic layer and a special roundness are added.

Due to the dense compression and coarse raw material, this tea opens up slowly, so the traditional method is not infusion pouring, but boiling (煮, zhǔ): a chipped-off piece is boiled. In the steppe tradition, it is boiled with milk and salt, yielding a hearty nomadic beverage. For the cup, a long steep at a high temperature with several infusions is suitable — delicate leaf-to-water ratios do not work here.

Organoleptic Profile

Organoleptic: History and Culture

Yangloudong has been mentioned as a tea place since ancient times, but the true flourishing of pressed tea came during the Ming and Qing dynasties, when stable trade with the northern peoples took shape. In the 19th century, the region became one of the nodes of the aforementioned "Great Tea Road": through Hankou, green brick tea traveled by caravans and ships to Russian fairs. A recognizable image is associated with this export — a brick with the embossed character 川 (chuān, "stream"), the famous "three-line" design on the front face of many Hubei cakes.

Thus the old green base became a cultural bridge: the coarse, unpretentious tea of southern Hubei fed and warmed peoples for whom fresh green leaf was unavailable, and remained a currency of border trade for centuries.

Chemical Composition

Chemistry: How to Distinguish

• From delicate green teas — 老青茶 is made from a mature, multi-leaf, coarse shoot and necessarily undergoes 渥堆; this is a dark tea, not a green tea, despite the word "green" in the name (it indicates the initial type of raw material fixation, not the final category).
• From shu pu-erh (普洱熟) — Both undergo wet piling, but pu-erh is made from the Yunnan large-leaf variety 大叶种 (dàyèzhǒng) and is pressed into cakes and tuo; Hubei brick is from a southern Hubei landrace, rectangular, with division into 面茶 and 里茶 and often with the embossed 川 mark.
• **From 茯砖 (fú zhuān)** of Anhua and Shaanxi — There is kinship in the 发花/金花 line, but fuzhuan is specifically defined by the obligatory "golden flower," whereas for the classic Hubei green brick, 金花 is a possible but not obligatory feature.
• By shape and imprint — A rectangular dense brick with signature lines, a layered structure at the break (a finer "face" layer and a coarse middle) — are characteristic signs of Hubei pressing.

The old green base is a rare case where the "coarseness" of the raw material is elevated into a system: it is precisely this that gave Hubei dark tea its endurance, its long road, and its long life in aging.