Bì luó chūn

碧螺春 (bì luó chūn) is one of China’s most recognisable green teas: tightly coiled into spiral buds, downed with silvery fuzz, and a combination of floral-fruity aroma that local masters express with the formula “one tenderness, three freshnesses”. Genuine Biluochun is born only in a narrow zone by Lake Taihu near Suzhou, and the entire history of its quality and counterfeits is built around this fact.

1. Classification and Origin:

• Type: hand-fried green tea in a wok (炒青绿茶).
• Category: twisted tea of “卷曲螺形” shape (curled spiral-snail).
• Origin: Dongting hills (洞庭) in Wuzhong District (吴中) of Suzhou city, Jiangsu province. This is not one single place, but two zones — the eastern Dongshan Mountain (东山), a peninsula jutting into Taihu, and the western Xishan Mountain (西山), now administratively Jinting (金庭), an island in the lake.
• Standard: 东山碧螺春 — hand-picked harvest before Qingming (明前), top-tier (特级); it is the benchmark by which all others are judged.

2. History and Cultural Significance:

Biluochun is one of the historically famous teas (名茶) of the Dongting hills; according to legend, it once bore an expressive folk name reflecting the strength of its aroma, while the elegant name “碧螺春” — “emerald spring spirals” — was established by the Kangxi Emperor (康熙) during a southern tour. Regardless of the details of the legend, the tea firmly entered the ranks of standard-setting green teas of Jiangnan and became the hallmark of the Suzhou lake region.

In the constellation of famous Jiangsu teas, Biluochun holds a special place as an exemplar of the curled shape; alongside it stand teas of different manufacture — Nanjing’s 雨花茶 (yǔ huā chá) in the shape of a pine needle, Yixing’s 阳羡雪芽 (yáng xiàn xuě yá), already praised by Su Shi, and the flat teas of Changzhou and Zhenjiang. Against this backdrop, it is precisely the spiral-snail and the thick fuzz that make Biluochun instantly recognisable.

3. Botanical Description and Raw Material:

• Cultivar: classic Biluochun is made from the local population variety — 洞庭群体种 (dòngtíng qúntǐzhǒng), an old seedling landrace, selected for centuries on the Dongting hills.
• Leaf: these bushes yield a small, highly downy leaf with a rich aromatic profile; it is precisely the thick white down (白毫) that provides the basis of the finished tea’s famous fuzz.
• Cultivar base: in the more accessible segments of the GI zone, improved clonal bushes (良种) are permitted, but the benchmark profile is specifically associated with the population variety.

4. Terroir and Cultivation Features:

The island and peninsula microclimate, mild winters, high humidity and diffused light over the water create the conditions in which tender buds swell slowly and aromatically.

A key feature of the terroir is mixed planting: tea bushes grow interspersed with fruit trees (loquat, apricot, peach, plum, mandarin). The roots intertwine, the crowns provide shade, and the spring blossoms and set fruit saturate the air. Hence the signature “花果香” — the floral-fruity aroma, which in genuine Dongting Biluochun is perceived as natural, not added.

5. Production Technology:

Biluochun is a 炒青绿茶, a hand-fried green tea in a wok, and the “卷曲螺形” (curled spiral-snail) shape is the result of purely manual work. The sequence of operations is classic: 杀青 (fixation of the leaf in a hot wok), 揉捻 (rolling), 搓团显毫 (rubbing into balls to reveal the down) and 炒干 (final drying). All this is performed in one wok, without interruption, according to the principle that masters formulate as “the hand does not leave the tea, the tea does not leave the wok, in the rolling there is frying, in the frying there is rolling”.

The stage of 搓团显毫 — rubbing the moist leaf with the palms into dense balls — forces the buds to curl into a tight spiral and “raises” the silvery fuzz to the surface. It is from here that the characteristic appearance emerges: small, tightly curled, downy tendrils, which pickers and traders figuratively call “蜜蜂腿” — “bee’s legs”.

6. Organoleptic Characteristics:

The quality of genuine Biluochun is traditionally described by the formula “一嫩三鲜” (yī nèn sān xiān) — “one tenderness, three freshnesses”.

• 一嫩 — tenderness of the raw material. The buds and leaves are picked at the earliest stage, small and uniform; the higher the grade, the “younger” and finer the material. It is the tenderness of the raw material that makes it possible to twist the tea into a dense spiral and count tens of thousands of buds per jin.
• 三鲜 — three freshnesses: freshness of colour (色鲜) — silvery-green with a subdued emerald undertone, in the standard phrase “银绿隐翠”; freshness of aroma (香鲜) — a lively floral-fruity bouquet; freshness of taste (味鲜) — a pure, soft, sweetish infusion without coarseness.

This formula is not marketing, but a working criterion: if the raw material is insufficiently tender, or the tea is made outside the season and outside the zone, the “three freshnesses” do not come together.

The dry leaf — small silvery-green spirals in dense white fuzz, with a delicate floral-fruity aroma. The infusion is pale, transparent-green; in taste — a tender freshness, soft sweetness and a long floral-fruity aftertaste.

9. Brewing:

Because the buds are small, heavy and heavily downed, Biluochun is classically brewed using the “top-drop” method (上投法): first, water at a temperature of about 75–80 °C is poured into a glass cup, and then the tea is added from above. Genuine high-grade Biluochun quickly sinks, unfurling on its way to the bottom — this is both a spectacle, and serves as an indirect test of the tenderness of the raw material. Glass is preferable: it allows one to observe the “dance” of the descending buds and assess the clarity of the infusion.

11. Price and Counterfeits:

Biluochun is protected as a product of geographical indication: only tea from the designated Dongting zone in Wuzhong District is considered genuine. The state standard divides it into several quality levels — special grade (特级, with subdivisions into first and second ranks), first, second and third grade. The higher the gradation, the tenderer the raw material and the more buds are used per unit of weight:

• 特级 (Ming Qian, hand-picked) — the highest level: approximately 60,000–70,000 buds per jin (500 g). This is the 顶级 segment, the benchmark Dongshan Biluochun.
• 西山碧螺春 Ming Qian — the high segment: island microclimate, pronounced floral-fruity tone.
• 一级 (Ming Qian–Gu Yu) — the middle segment: fewer buds, price more accessible, but still the GI zone.
• 三级 (around Gu Yu) — mass “daily drinking” (口粮) Biluochun from the GI zone, made from coarser raw material and clonal bushes.

Standing apart is what is sold as “碧螺春” outside Wuzhong District — in other parts of Jiangsu and beyond. Formally, this is “Biluochun-style” by leaf shape, but not a geographical indication; it is precisely here that the main market pitfall lies.

How to identify a counterfeit:

• Origin. Genuine — only from the Dongting zone (Dongshan/Xishan-Jinting) in Suzhou’s Wuzhong District. “碧螺春” declared from other regions is a style of shape, not a geographical indication.
• Fuzz and colour. Real fuzz is silvery-white, and the overall tone of the dry leaf is “银绿隐翠”, silvery-green with a subdued emerald. An overly bright green, “dyed” appearance is a warning sign of artificial colouring.
• Shape. Small, tightly curled “bee’s legs” (蜜蜂腿) with a bud; coarse, loose or large spirals indicate lower-grade raw material or a counterfeit.
• Aroma. A natural floral-fruity tone, not cloyingly perfumed. A sharp “flavoured” note is suspicious.
• Behaviour in water. On a top-drop brewing, high-grade tea sinks rapidly; “suspended” large leaves point to different material.
• Season and gradation. A declared Ming Qian 特级 at a suspiciously low price almost always means either off-season raw material, or tea from outside the GI zone.

12. Interesting Facts:

Summing everything up: genuine Dongting Biluochun is a coincidence of place (the hills by Taihu), cultivar (洞庭群体种), early tender handcrafting and the three freshnesses of colour, aroma and taste. Where at least one of these conditions is absent, what you have before you is a “Biluochun-style”, but not the Dongting standard.