Bānán Yín Zhēn

Bānán Yín Zhēn (巴南银针, Bānán yín zhēn) is a high-quality needle-shaped green tea from the Banan District of Chongqing Municipality, serving as the calling card of this megacity’s tea culture. The tea is grown on Mount Baixiangshan (“White Elephant,” 白象山) at elevations of 800–1200 m, in the cloud belt of the Mingyueshan Range (明月山), and is produced using the intangible cultural heritage technology “Banan Tea Production Techniques” (巴南茶叶制作技艺), which has been passed down through four generations of masters. The straight, elegant tea leaves, covered with silvery down, stand vertically when brewed and slowly sink to the bottom—a spectacle comparable to “afternoon spring rain” that has earned the tea the status of “the only official tea of the Asia-Pacific Cities Mayors Summit” (2005), geographical indication product (2011), and gold laureate of the National Green Food Exhibition (2022).

1. Classification and Origin:

• Type: Green tea (绿茶, lǜchá), non-oxidized. Belongs to needle-shaped green teas (针形绿茶, zhēnxíng lǜchá). Technologically combines pan-firing and hot-air drying with predominance of drying at the final stage—the proprietary method “初干以烘代炒” (chūgān yǐ hōng dài chǎo—“primary drying with hot air instead of pan-firing”).

• Category: Product with registered geographical indication trademark (国家地理标志商标注册, 2011). “China Famous Agricultural Product” (中国名牌农产品). Included in the “National Registry of Famous, Special, Superior and New Agricultural Products” (全国名特优新名录). The production technology “Banan Tea Production Techniques” (巴南茶叶制作技艺) is inscribed in the Registry of Intangible Cultural Heritage of Chóngqìng (重庆市非物质文化遗产, 2009). In 2004, the processing technology received a national invention patent (国家发明专利). Multiple winner of “Zhong Cha Bei” competitions (中茶杯, first prize at 6th and 7th competitions), “Hua Ming Bei” (华茗杯, gold), “Sanxia Bei” (三峡杯, gold). “Chongqing Time-Honored Brand” (重庆老字号). The only officially designated tea of the Asia-Pacific Cities Mayors Summit (亚太城市市长峰会唯一指定用茶, 2005) and Shanghai World Expo (上海世博会指定用茶, 2010). The “Banan Yin Zhen” brand is valued at 1.41 billion yuan.

• Origin: China, Chóngqìng Municipality (重庆市, Chóngqìng Shì), Bānán District (巴南区, Bānán Qū). Production core—Mount Baixiangshan (白象山, Báixiàng Shān) in Èrshèng Town (二圣镇, Èrshèng Zhèn), Mingyueshan Range (明月山脉).

• Geographic coordinates: Approximately 29°30′ North latitude, 106°42′ East longitude.

2. History and Cultural Significance:

• History: The tea tradition of Banan has deep roots. Lù Yǔ (陆羽) in “The Classic of Tea” (《茶经》, 8th century) wrote: “Tea is a noble tree of the south… In the mountains of Ba and the gorges [of the Yangtze] there are [trunks] that can only be embraced by two people” (其巴山峡川有两人合抱者)—direct evidence of the antiquity of tea cultivation in the region where modern Chongqing is located.

  Qing Era—creation of the prototype. At the end of the Qing dynasty (19th century), a tea called “Dingxin Bayu Yinzhen” (定心巴渝银针, “Bayu Silver Needle [from Dingxin]”) was created in the Banan area. However, due to wars and political upheavals of the first half of the 20th century, the technology was lost.

  Restoration and brand establishment (1980–1990s). In the 1980s, specialists from the Chongqing company “Ersheng Tea Industry” (二圣茶业公司, now part of the “Chongqing Tea Group”—重茶集团) began restoring the lost technology. In 1990, the first experimental sample was obtained, and in 1995 the tea received the official name “Banan Yin Zhen” (巴南银针) and registered trademark.

  Recognition and growth (2000s—present). In 2004, the production technology was protected by a national invention patent—the key innovation was recorded: “杀青中度偏嫩、初干以烘代炒” (kill-green with tendency toward “tender” degree of firing + primary drying with hot air instead of pan-firing). In 2005, the tea became the only officially designated tea of the Asia-Pacific Cities Mayors Summit—an event that brought the brand to the international level. In 2009, the technology “Banan Tea Production Techniques” was included in the Registry of Intangible Cultural Heritage of Chongqing. The craft transmission is preserved by Liú Guanlu (刘观禄)—a hereditary tea grower, representative of the fourth generation of masters. In 2011, geographical indication was obtained. By 2017, the area of tea gardens in Banan District reached 40,000 mu (~2,670 ha), annual production—3,040 tons. Products are exported to Denmark, USA and other countries.

• Name:

  • “Banan” (巴南)—“South of [the lands of] Ba.” Banan District is located in the southern part of Chongqing—territory that historically belonged to the ancient kingdom of Bā (巴国, Bāguó, 1st millennium BCE). The toponym “Ba” (巴) is one of the key markers of Chongqing’s regional identity, and the tea’s name deliberately emphasizes this connection.
  • “Yin Zhen” (银针)—“Silver Needle.” Describes the shape of the finished tea leaf: straight, thin, covered with silvery down, resembling a shining needle. The name “yinzhen” in Chinese tea tradition is reserved for teas of the highest quality—from single buds or buds with barely opened leaves.

• Cultural significance: Banan Yin Zhen is one of the four main tea brands of Chongqing (alongside Yongchuan Xiuya, Nanchuan Gushucha and Jiming Gongcha). Banan District has historically been Chongqing’s “tea district”: “Previously in Banan, almost every family made tea”—recalls master Liu Guanlu. The “Dingxin” tea garden (定心茶园) on Mount Baixiangshan has become one of the main tourist attractions of Chongqing’s suburbs, where the annual “Tea Picking Festival” (采茶节) is held, attracting tens of thousands of visitors. In 2019, “Dingxin” was recognized as “China’s Most Beautiful Tea Garden” (中国最美丽茶园) by the China Association for the Promotion of International Agricultural Cooperation.

3. Botanical Description and Raw Material:

• Variety / Cultivar: Several varieties of Camellia sinensis are used:

  • Fúdǐng Dàbái Chá (福鼎大白茶, Fúdǐng Dàbái Chá)—main cultivar, C. sinensis var. sinensis. Provides pronounced tippy character, abundant white down and delicate amino acid profile.
  • Bāyú Tèzǎo (巴渝特早, Bāyú Tèzǎo)—super-early clonal variety included in the registry of national tea cultivars (国家级良种). Allows harvesting to begin in late February—early March.
  • Yúnnán Dàyè Zhǒng (云南大叶种)—auxiliary large-leaf variety used for individual batches. Chemical composition data for fresh leaves: polyphenols ≥19.8%, water-extractable substances ≥47.4%—an exceptionally high indicator testifying to the richness of internal substances.

• Harvesting: 100% of raw material for “Banan Yin Zhen” is harvested before Qīngmíng (明前, ~April 5). The most valuable batches are from the first spring “flush” (first layer of buds after wintering), harvested in late February—early March (thanks to the Bayu Tezao variety).

• Harvesting standard:

  • “Single bud” level (单芽级): only full, unopened buds from the first spring harvest. Highest category, price—from 2,000 yuan per jin.
  • Supreme grade (特级): one bud with barely opened leaf (一芽一叶初展).
  • First grade (一级): one bud with one leaf.
  • Second grade (二级): one bud with two small leaves.

• Raw material requirements: Shoots fresh, uniform, undamaged. Hand-picked. Processing—on the same day.

4. Terroir and Cultivation Features:

• Climate: Mount Baixiangshan is located in the zone of subtropical humid monsoon climate characteristic of Chongqing. Average annual temperature—18–20°C. Relative humidity—≥75%. Number of foggy days—more than 200 per year. Daily temperature fluctuations—significant, which stimulates amino acid accumulation in shoots. Amino acid content in spring tea—≥3.10%—an indicator explaining the bright “freshness” and sweetness of taste.

• Growing elevation: 800–1200 meters above sea level. Production core—elevation belt 800–1000 m on Mount Baixiangshan, located in the “cloud zone” (云雾带).

• Soils: Yellow soils (黄壤, huáng rǎng) with pH 4.5–6.0, rich in humus and microelements, including selenium. Tea gardens are located in the water resource protection zone (水源保护区). Chemical fertilizers and pesticides are prohibited; an ecological system “pig → biogas → tea” (猪—沼—茶 ecological cycle) has been implemented.

• Production core: National Elite Tea Variety Breeding Base “Baixiangshan” (白象山国家级茶树良种繁育基地) in Ersheng Town, Banan District. Total area—20,000+ mu (~1,340 ha), including 4,000 mu of standardized demonstration garden. The tea garden is equipped with a meteorological station for monitoring temperature, precipitation, humidity and illumination.

5. Production Technology:

Banan Yin Zhen is produced using patented technology (national patent 2004), comprising 37 production operations (工序). Key innovations: “kill-green with tendency toward tenderness” (杀青中度偏嫩)—gentle processing without over-firing; “primary drying with hot air instead of pan-firing” (初干以烘代炒)—preservation of white down and formation of “needle-shaped” silhouette. The technology combines mechanized and manual operations and is transmitted as intangible cultural heritage.

• Spreading (摊放—tān fàng): Shoots are spread in a thin layer for 4–8 hours. Prolonged spreading is a distinctive feature of Banan Yin Zhen technology: during this time moisture content decreases, chestnut aroma development begins, leaves acquire elasticity.

• Kill-green (杀青—shāqīng): Rotary drum at ~150°C or microwave fixation. The principle is applied: “tender leaves—more intensive processing; mature leaves—gentler processing” (嫩叶老杀，老叶嫩杀). General tendency—toward the “tender” side (中度偏嫩) to preserve maximum freshness.

• Rolling (揉捻—róuniǎn): Light rolling to form basic structure without destroying down.

• Re-rolling (复揉—fùróu): Additional operation for compacting tea leaf structure.

• Shaping—“straightening strips and raising down” (理条提毫—lǐtiáo tíháo): Key stage determining the “needle-shaped” silhouette. Leaves are straightened, shaped into thin straight “needles,” while white down is “raised” to the surface (提毫), creating silvery luster.

• Drying (烘干—hōnggān): Hot-air drying to moisture content ≤5%. It is at this stage that the patented innovation “以烘代炒” is implemented—hot-air drying instead of final pan-firing, which preserves down tenderness and aroma purity.

• Final processing and warming (精制·提香—jīngzhì · tíxiāng): Careful sorting + final warming for “aroma lifting” and chestnut note fixation.

6. Organoleptic Characteristics:

• Dry leaf appearance: Straight, elegant “needles” (挺直似针, tǐngzhí sì zhēn), covered with abundant silvery down (绿润披毫, lǜ rùn pī háo). Color—rich green with silvery sheen. Tea leaves exceptionally uniform and even.

• Dry leaf aroma: Chestnut (栗香, lìxiāng)—main note. Complemented by pure green freshness (清香, qīngxiāng) and light “downy” note reminiscent of young corn (毫香/玉米香).

• Liquor aroma: High chestnut aroma, persistent and long-lasting. In supreme grades—with additional honey nuancing.

• Taste: Fresh and mellow (鲜醇, xiānchún), with pronounced sweetness that persists for a long time (甘爽, gānshuǎng). Light astringency quickly transforms into sweetness (微涩速化). Medium body, “juicy.” Returning sweetness (回甘)—bright and prolonged.

• Liquor color: Yellow-green, bright and clear (黄绿明亮, huánglǜ míngliàng).

• Spent leaves (wet leaves): Tender green, uniform (嫩绿匀整). Shoots whole and “lively” (芽叶鲜活). When brewed in a glass cup, the characteristic “needle dance” is observed: tea leaves stand vertically, then slowly sink to the bottom—a spectacle that has become the visual calling card of Banan Yin Zhen.

7. Chemical Composition:

• Polyphenols (catechins): ≥19.8%. Moderate indicator ensuring mellow taste without excessive astringency—result of “tender” kill-green.

• Water-extractable substances: ≥47.4%—one of the highest indicators among Chinese green teas, indicating exceptional richness of soluble components.

• Amino acids (including L-theanine): ≥3.10% in spring tea. High content—key factor of taste “juiciness” and sweetness.

• Alkaloids: Caffeine (moderate content), theobromine, theophylline.

• Selenium (Se): 0.15–0.35 mg/kg. Baixiangshan soils contain selenium, which naturally accumulates in tea leaves.

• Vitamins: Vitamin C, B-group vitamins (B1, B2), vitamin E, vitamin K.

• Minerals: Potassium, magnesium, zinc, fluorine.

8. Health Properties:

• Antioxidant action: Polyphenols (~20%) provide effective neutralization of free radicals.
• Tonic effect: Combination of caffeine and L-theanine (≥3.10% amino acids)—gentle, balanced alertness and improved concentration.
• Lipid metabolism support: Catechins promote acceleration of fat breakdown and cholesterol level normalization.
• Selenium deficiency compensation: Se content (0.15–0.35 mg/kg)—additional bonus for immune system and antioxidant protection.
• Digestive support: Polyphenols stimulate digestive processes.
• Refreshing action: Traditional “cooling” effect of green tea—especially valuable in Chongqing’s hot and humid climate.

9. Brewing:

• Water temperature: 85–90°C for glass cup; 80–85°C for gaiwan. For supreme grade—no higher than 85°C. Overheating (>90°C) destroys freshness and causes bitterness.

• Tea quantity: 3 g per 150 ml (glass cup, ratio 1:50).

• Teaware: Glass cup (玻璃杯)—best choice: allows observing the “silver needle dance” when tea leaves stand vertically in water and slowly sink to the bottom—an effect for which Banan Yin Zhen is especially valued. White porcelain gaiwan—optimal for aroma concentration.

• Process:

  1. Warm the cup with hot water.
  2. Add tea.
  3. Pour water (85–90°C). Do not stir—let the “needles” stand by themselves.
  4. Observe the “dance” for 2–3 minutes: tea leaves will rise vertically, then slowly sink to the bottom.
  5. First infusion is ready for tasting after 2–3 minutes.
  6. For gaiwan: first steeping—10 seconds, each subsequent—+5–10 seconds. Withstands 4 steepings.

10. Storage:

• Airtight packaging, protection from light, moisture and foreign odors.
• Optimal—refrigerator at 0–5°C in sealed packaging.
• New tea is recommended to “rest” for 15 days in a dark cool place to soften “fire energy” (火气).
• After opening—consume within 7 days (!) for maximum aroma preservation. Banan Yin Zhen is a tea with exceptionally delicate aromatics, quickly losing freshness in air.

11. Price and Counterfeits:

• Price category: Upper segment of Chongqing green teas. Approximate prices: “single bud” level—from 2,000 yuan per jin (500 g); supreme grade (特级)—from 700 yuan; first grade—400–600 yuan; second grade—200–400 yuan.

• How to avoid counterfeits:

  • Buy from official producer—“Chongqing Tea Group” (重茶集团) and its subsidiary “Ersheng Tea Industry” (二圣茶叶公司), as well as authorized sales points in Chongqing and online.
  • Check for geographical indication trademark “巴南银针” on packaging.
  • Authentic tea—straight, even “needles” with abundant silvery down. Counterfeits—often crooked, with dull down or without it.
  • Aroma—pure chestnut, without foreign odors. Liquor—clear, yellow-green. When brewing, “needles” should stand vertically—this is a sign of proper shaping and authentic raw material.
  • Price below 400 yuan per 500 g (for supreme grade)—reason for doubt.

12. Interesting Facts:

• Tea for mayors and presidents. In 2005, Banan Yin Zhen became the only official tea of the Asia-Pacific Cities Mayors Summit (亚太城市市长峰会). In 2007—tea for receptions and official gift for celebrating the 10th anniversary of Chongqing as a municipality directly under central government. In 2010—tea of Shanghai World Expo (EXPO-2010).

• 37 operations and 4 generations. Banan Yin Zhen production technology includes 37 operations (工序) and is transmitted as intangible cultural heritage through four generations of masters. Current keeper—Liú Guanlu (刘观禄): “When guests came to us, father always brewed a cup of Banan Yin Zhen—the liquor greenish and clear, and in each sip—the warmth of Banan hospitality.”

• “Silver needle dance.” When brewed in a glass cup, Banan Yin Zhen tea leaves stand vertically, like a miniature bamboo forest, then, after 5–6 minutes, slowly sink to the bottom. This visual effect is the result of precise balance between tea leaf density (ensured by “理条提毫” shaping) and air bubbles held by down. Observing the “dance” is a traditional part of tasting.

• “Chongqing’s Sri Lanka.” The “Dingxin” tea garden (定心茶园) on Mount Baixiangshan, for its terraced slopes shrouded in mist, received the unofficial nickname “Chongqing’s Sri Lanka” (重庆版斯里兰卡). Here the annual “Dingxin Tea Picking Festival” (定心采茶节) is held, a tea workshop with master classes on hand processing operates, along with a tasting hall, tea restaurant (dishes: “tea chicken,” “green tea with doufu”), guest houses and camping areas.

• Patent for “tenderness.” The 2004 technology—“杀青中度偏嫩、初干以烘代炒”—became the first national invention patent in Chongqing’s tea industry. The essence of innovation: gentler kill-green preserves maximum amino acids, while replacing final pan-firing with hot-air drying protects white down from “burning out.”

13. Comparison with other Chongqing green teas:

• Yǒngchuān Xiù Yá (永川秀芽): Also from Chongqing, but twisted form. Banan Yin Zhen—“needle-shaped” buds, more “tender” profile.

• Sānxiá Long Jǐng (三峡龙井): Chongqing. Flat, Longjing type. Banan Yin Zhen—“needle-shaped,” with emphasis on down and “silver” aesthetics.

• Dìngjūn Míng Méi (定军茗眉): Hanzhong. “Eyebrow-shaped” form, Se-enriched. Banan—different region (Chongqing), “needle-shaped” form.

13. Comparison with other “needle-shaped” green teas:

• Yǒngchuān Xiù Yá (永川秀芽): Also from Chongqing, but from another district. Flat-straight form, “eyebrow-shaped.” Banan—round “needles,” more “downy.”

• Ēnshī Yǔ Lù (恩施玉露): Steam fixation (steaming), “marine” taste. Banan—pan-firing fixation, chestnut aroma.

• Jīngxiàn Tè Jiān (泾县特尖): Anhui. Also “needle-shaped,” but from another province, with different terroir. Banan—from Mount Baixiang (White Elephant), 400–1000 m.

In conclusion:

Banan Yin Zhen is a tea where three rare qualities converge: intangible cultural heritage in technology, visual poetics of the “silver needle dance,” and a taste profile built on amino acid richness (≥3.10%) and record-high content of extractable substances (≥47.4%). This is tea from the very heart of Chongqing—a megacity known more for spicy hotpot than refined green teas—and all the more surprising to discover on its southern slopes, in the clouds of White Elephant Mountain, tea of such tenderness and purity. Suitable for those who value the visual aesthetics of brewing no less than the taste in the cup.