Cold Brewing Chinese Tea 2026: Complete Guide for All Six Types

Disclosure: this article contains affiliate links — we may earn a commission on qualifying purchases at no extra cost to you.

Last updated: April 2026

Quick Answer

• Universal ratio: Use 1g leaf per 100ml cold filtered water (10g per liter) for most Chinese teas, or 1:80 for stronger results with aged pu-erh and oolong.
• Steep window: 4-12 hours in the refrigerator at 4°C (39°F). Green and yellow teas finish in 4-6 hours; white, oolong, red, and pu-erh peak between 8-12 hours.
• Caffeine drops 40-60%: Cold brewing extracts 40-60% less caffeine than 95°C gong fu brewing while retaining 85-90% of catechins (Journal of Food Science, 2023).
• Market context: China's ready-to-drink cold brew tea segment grew 38% YoY in 2025 to ¥48.7 billion (~$6.7B USD), per iiMedia Research's 2026 outlook, making cold brew the fastest-growing tea category for the third consecutive year.

Cold brewing extracts 40-60% less caffeine than gong fu hot brewing while preserving roughly 90% of total catechins, per a 2023 Journal of Food Science study on Chinese green and oolong cultivars. The 2026 China Tea Marketing Association report (in Chinese) puts domestic cold brew consumption at 2.1 billion liters last year, up from 1.5 billion in 2024 — proof that this isn't a Western fad. It's how a generation of Chinese drinkers under 35 now drinks Longjing, Bai Hao Yin Zhen, and shou pu-erh in summer.

This guide walks through every one of China's six tea classes — green (绿茶), yellow (黄茶), white (白茶), oolong (乌龙茶), red/black (红茶), and dark/pu-erh (黑茶/普洱) — with leaf-to-water ratios, steep windows, cultivar picks, and the chemistry that explains why each tea behaves the way it does in cold water. Every recommendation is benchmarked against 2025-2026 sources from Chinese tea research institutes and peer-reviewed journals.

Affiliate disclosure: Tea Atlas earns a small commission from qualifying purchases through links in this article. It costs you nothing extra and helps fund our cupping sessions, lab tests, and travel to producing regions. We only recommend gear and tea we'd brew at home.

Why cold brew Chinese tea?

Cold brew (冷泡茶, lěng pào chá) entered Chinese mainstream in the early 2010s through Taiwan, where convenience-store PET bottles popularized it. By 2020 it had crossed back to the mainland as a home-brew movement. The 2026 numbers are staggering: per iiMedia Research, 73% of Chinese consumers aged 18-35 reported drinking cold brew tea at least weekly in 2025, up from 41% in 2022.

The appeal is mechanical, not just stylistic. Hot water above 80°C aggressively extracts catechins, caffeine, and the bitter compounds locked in cell walls — that's how you get a strong gong fu cup in 15 seconds. Cold water below 10°C extracts the same compounds at roughly one-tenth the rate, but it preferentially pulls amino acids (especially L-theanine and glutamic acid) and aromatic terpenes before the bitter polyphenols catch up. The result, documented in a 2024 Food Chemistry paper out of Zhejiang University, is a cup with 2.3x higher amino-acid-to-polyphenol ratio compared to the same leaf brewed at 90°C — that's the "umami sweetness" cold brew enthusiasts chase.

There are three other reasons Chinese tea drinkers have embraced the method:

1. Forgiveness. Old or slightly stale leaves that taste flat hot often perk up cold. The slow extraction smooths over technique errors that gong fu would expose.
2. Caffeine control. A cold-brewed Longjing delivers roughly 28mg of caffeine per 250ml versus 65-80mg for the same leaves brewed gong fu, per a 2025 study from Anhui Agricultural University (in Chinese). Office workers and parents drink it through the afternoon.
3. Travel. A 1L glass bottle of cold-brew Bai Mu Dan stays drinkable for 36 hours in a refrigerator. Try that with a thermos of hot Tieguanyin.

"The cold brew movement is the single biggest behavioral shift in Chinese tea consumption since gaiwan culture spread north in the 1990s. We're seeing first-flush Longjing and pre-Qingming Biluochun being explicitly marketed for cold brewing — a sentence that would have been heretical a decade ago." — Dr. Liu Zhonghua, professor and former director of the Hunan Agricultural University Tea Research Institute, quoted in the 2025 China Tea Industry Annual Report.

Check current price on Amazon →

How does cold brewing change extraction?

Three variables drive cold extraction: temperature, time, and surface area. Hot brewing leans on temperature; cold brewing leans on time and leaf cut. That trade explains nearly every recipe choice in this guide.

Temperature differential. Catechins (EGCG, ECG, EGC) and caffeine extract roughly 8-10x faster at 90°C than at 4°C, per the 2023 Journal of Food Science paper cited above. Volatile aromatics — the linalool, geraniol, and methyl salicylate that give green and oolong teas their character — extract more linearly, meaning cold water gets a higher proportion of aroma to bitterness in the cup, even though the absolute concentrations are lower.

Time as the lever. Because extraction is slower, you need 4-12 hours instead of 15-90 seconds. But the curve flattens: most cold brews reach 80% of peak extraction by hour 6 and only gain 10-15% more between hours 8 and 16. Going past 16 hours mostly adds bitterness and astringency without adding flavor — a phenomenon the 2024 Zhejiang University paper called "the second-extraction shoulder."

Leaf cut and rolling. Tightly rolled teas (Tieguanyin, Bi Luo Chun) need extra time because the leaf has to unfurl before water penetrates. Flat-pressed teas (Longjing, Tai Ping Hou Kui) extract faster because surface area is exposed from the start. Whole-leaf white teas (Bai Hao Yin Zhen) sit in the middle — the leaf is intact but the trichomes (white hairs) act as wicks.

Refrigeration matters. A study from the China Agricultural University Tea Science Department (in Chinese, 2024) measured microbial counts in cold-brew tea held at 4°C, 10°C, and 22°C over 24 hours. The 4°C samples showed no measurable bacterial growth; the 22°C samples crossed the safety threshold by hour 8. Cold brew on the counter is not cold brew. Refrigerate.

Master cold brew table for all six Chinese tea types

Tea type	Cultivar examples	Leaf:water ratio	Water temp	Steep time	Refrigeration window	Flavor profile
Green (绿茶)	Longjing, Biluochun, Anji Bai Cha	1:100	4°C filtered	4-6 hours	24 hours	Sweet pea, chestnut, fresh grass, light umami
Yellow (黄茶)	Junshan Yin Zhen, Meng Ding Huang Ya	1:120	4°C filtered	5-7 hours	24 hours	Corn silk, honeydew, soft toast, low astringency
White (白茶)	Bai Hao Yin Zhen, Bai Mu Dan, Shou Mei	1:80	4°C filtered	8-12 hours	36-48 hours	Honey, melon, hay, apricot (older Shou Mei: dates)
Oolong (乌龙茶)	Tieguanyin, Wuyi Rou Gui, Da Hong Pao, Phoenix Dan Cong	1:80	4°C filtered	8-12 hours	36 hours	Orchid, gardenia, stone fruit, mineral, roast (rock teas)
Red/black (红茶)	Dianhong, Jin Jun Mei, Lapsang Souchong, Keemun	1:100	4°C filtered	6-10 hours	24-36 hours	Cocoa, sweet potato, longan, pine smoke (Lapsang)
Pu-erh (普洱)	Sheng (raw), Shou (ripe)	1:80 (rinse first)	4°C filtered	8-12 hours	48-72 hours	Sheng: apricot, leather; Shou: dark cocoa, dates, wet earth

Use this table as a starting point; the sections below explain the why and the cultivar-specific tweaks.

Green tea cold brew: Longjing, Biluochun, Anji Bai Cha

Green tea (绿茶) is China's largest tea category — roughly 60% of domestic production, per the 2026 China Tea Marketing Association report. It's also the easiest entry point into cold brewing because the unfermented leaf is built for low-temperature extraction.

Recipe: 10g leaf to 1L cold filtered water (1:100). Steep 4-6 hours at 4°C. Strain.

Cultivar notes:

• Xi Hu Longjing (西湖龙井) from Hangzhou. The flat-pressed leaves expose maximum surface area; cold brew them and you'll taste the signature "chestnut aroma" (栗香) with almost no bitterness. Stick to pre-Qingming (明前) leaves from a 2025 or 2026 harvest — green tea oxidizes fast and last year's leaf will taste flat. Expect ¥800-1,800 per 250g (~$110-250 USD) for authentic Xi Hu region leaf.
• Biluochun (碧螺春) from Dongting Mountain in Suzhou. Tightly curled with heavy trichomes. The cold brew develops a fruity-floral character that's harder to coax out hot — think peach pit and white flower. Use the same 1:100 ratio but extend to 6 hours because the leaves unfurl slowly. Authentic Dongting Biluochun runs ¥1,200-2,500 per 250g (~$165-345 USD).
• Anji Bai Cha (安吉白茶). Despite the name (literally "Anji white tea"), it's a green tea — the cultivar is genetically albino in early spring, producing leaves with extraordinary L-theanine content. The 2024 Zhejiang Agricultural Sciences journal measured Anji Bai Cha at 6.2% theanine by dry weight versus 1.5-2% for typical green teas. Cold brew it at 1:120 for 5 hours — the result is the sweetest, most umami-forward cold brew in this entire guide.

Common mistakes: Over-leafing. Green teas pack a lot of catechins relative to amino acids; pushing past 1:80 creates astringency without adding flavor. The other mistake is using cheap supermarket Longjing — those teas are typically machine-harvested late-spring leaves with low theanine. Cold brew exposes that flatness.

For deeper hot-brew technique on these same leaves, see our guide to brewing Chinese green tea glass-style.

Check current price on Amazon →

Yellow tea cold brew: Junshan Silver Needle, Meng Ding Huang Ya

Yellow tea (黄茶) is the rarest of the six classes — under 0.5% of Chinese tea production, per 2025 industry data. The category is defined by a "sealing yellow" (闷黄) step that mildly oxidizes the leaf through controlled heat and humidity, producing a softer, lower-astringency cup than green tea.

Recipe: 8g leaf to 1L cold filtered water (1:120). Steep 5-7 hours at 4°C.

Cultivar notes:

• Junshan Yin Zhen (君山银针) from Hunan's Dongting Lake island. Bud-only tea, traditionally floated upright in glass. Cold brewed, it gives a corn-silk sweetness with a gentle vegetal finish. Authentic Junshan Yin Zhen is genuinely scarce — annual production is under 1,000kg — and runs ¥3,000-8,000 per 250g (~$415-1,100 USD). Use a slightly lower ratio (1:120) because the buds are dense and pack more flavor than they look.
• Meng Ding Huang Ya (蒙顶黄芽) from Sichuan. More accessible at ¥600-1,500 per 250g (~$83-207 USD). Cold brew brings out a soft chestnut-and-honey character that hot brewing tends to push toward green-tea grass.

Why the 1:120 ratio? Yellow teas have lower polyphenol content than green teas (averaging 18% versus 24% by dry weight, per a 2024 Hunan Agricultural University study) but similar amino acid content, so a slightly diluted brew preserves the umami without crossing into thinness.

Storage note: Yellow tea oxidizes a touch slower than green tea but still benefits from cold storage. See our green tea storage guide — the principles apply.

White tea cold brew: Bai Hao Yin Zhen, Bai Mu Dan, Shou Mei

White tea (白茶) is the cold brew darling. The minimal processing — just withering and drying — leaves the leaf chemistry largely intact, which means it cold-extracts beautifully. The 2026 Fujian Tea Association report shows white tea cold brew sales grew 51% YoY in 2025, the fastest of any category.

Recipe: 12g leaf to 1L cold filtered water (1:80). Steep 8-12 hours at 4°C.

Cultivar notes:

• Bai Hao Yin Zhen (白毫银针) — Silver Needle. Bud-only tea from Fujian, typically Fuding or Zhenghe. The thick down (毫) on each bud carries amino acids and aromatic compounds that cold water unlocks slowly. Cold brewed at 10 hours, expect honey, fresh-cut hay, and a soft melon finish. 2025-harvest Fuding Yin Zhen runs ¥1,500-3,500 per 250g (~$207-484 USD).
• Bai Mu Dan (白牡丹) — White Peony. One bud, one or two leaves. More body than Silver Needle, with apricot and floral notes. The most balanced cold brew choice for white tea beginners. Expect ¥400-1,200 per 250g (~$55-166 USD).
• Shou Mei (寿眉), especially aged 5+ years. The category's hidden gem for cold brewing. As Shou Mei ages, polyphenols mellow and complex date and dried-fruit flavors develop. A 2018 Shou Mei brewed cold for 12 hours produces something close to a fruit tisane — sweet, full-bodied, almost no astringency. ¥200-800 per 250g (~$28-110 USD) depending on age.

Pro technique: For aged Shou Mei (老白茶), do a 5-second hot rinse with 95°C water before cold brewing. The brief heat opens the compressed leaf and starts the aging compounds extracting; the cold brew then continues extracting overnight. This hybrid method appeared in a 2025 paper from the Fujian Agriculture and Forestry University tea department (in Chinese) showing it boosts flavanol extraction by 22% versus pure cold brew while keeping caffeine 35% lower than hot brewing.

For a deeper dive into both methods, see our white tea brewing guide.

Check current price on Amazon →

Oolong cold brew: Tieguanyin, Wuyi rock tea, Phoenix Dan Cong

Oolong (乌龙茶) is the trickiest cold brew category because the class spans 15-80% oxidation. A green Tieguanyin (10-20% oxidized) behaves more like a green tea; a heavily roasted Wuyi rock oolong (60-70% oxidized) behaves more like a red tea. Recipes differ accordingly.

Recipe: 12g leaf to 1L cold filtered water (1:80). Steep 8-12 hours at 4°C.

Cultivar notes:

• Anxi Tieguanyin (安溪铁观音), modern green style. Tightly rolled balls that need 10-12 hours to fully unfurl. Cold brewed, the orchid aroma comes through cleanly with a creamy mouthfeel. Use spring 2025 or autumn 2025 leaves; summer Tieguanyin is generally inferior. Expect ¥400-1,500 per 250g (~$55-207 USD).
• Wuyi Rock Oolong (武夷岩茶) — Rou Gui (肉桂), Shui Xian (水仙), Da Hong Pao (大红袍). Heavily roasted strip-style oolongs from the Wuyi Mountains in Fujian. Cold brewing pulls the cinnamon, mineral, and stone fruit notes while suppressing the heavy roast bitterness. This is one of the most rewarding cold brews for experienced drinkers. ¥800-5,000+ per 250g (~$110-690+) depending on grade and origin within the Wuyi designated zone.
• Phoenix Dan Cong (凤凰单丛) from Guangdong's Phoenix Mountains. Single-bush teas with explosive aromatic character — almond, magnolia, honey orchid, gardenia. Cold brewing emphasizes the floral top notes. Use a slightly shorter steep (8 hours) to avoid astringency. ¥600-3,000 per 250g (~$83-415 USD) for a serious Mi Lan Xiang (蜜兰香) or Ya Shi Xiang (鸭屎香, "duck shit fragrance" — the name is a marketing problem, the tea is exceptional).

Why oolongs need 1:80: Roasted and partially-oxidized teas have lower amino acid content than green teas because the heat and oxidation degrade some of the L-theanine. Pushing the leaf-to-water ratio up to 1:80 compensates by extracting more aromatic and flavor compounds.

Hybrid method for Wuyi rocks: Do a 10-second hot rinse with 100°C water, dump the rinse, then cold brew the rinsed leaves for 10 hours. The hot rinse drives off some volatile roast compounds (which can read as harsh in cold extraction) and the cold brew develops the deeper mineral notes. This is how I personally brew Lao Cong Shui Xian in summer.

For traditional hot oolong technique, see our gong fu brewing guide and the universal gaiwan method.

Red/black tea cold brew: Dianhong, Jin Jun Mei, Lapsang Souchong, Keemun

Chinese "red tea" (红茶) is what the West calls black tea — fully oxidized leaf. Cold brewing red tea produces a cup with cocoa, longan, and sweet-potato character that's noticeably less astringent than the same tea brewed hot.

Recipe: 10g leaf to 1L cold filtered water (1:100). Steep 6-10 hours at 4°C.

Cultivar notes:

• Dianhong (滇红) from Yunnan. Big-leaf cultivar (大叶种) with high theaflavin content, producing rich amber liquor with malt and honey notes. Cold brewed for 8 hours, it's smoother than any iced tea you can buy in a bottle. ¥200-600 per 250g (~$28-83 USD) for solid daily-drinker grades.
• Jin Jun Mei (金骏眉) from Tongmu in the Wuyi region — bud-only, originally created in 2005 and now one of China's most premium reds. Cold brewing draws out the longan, honey, and roasted-yam character. Use a tighter ratio (1:120) and shorter steep (6 hours) because the buds are dense. Authentic Tongmu Jin Jun Mei runs ¥3,000-15,000 per 250g (~$415-2,070 USD); cheaper "Jin Jun Mei" on the market is almost certainly Yunnan or other-region material.
• Lapsang Souchong (正山小种) from the same Tongmu region — the original smoked variant. Pine-smoked leaves cold-brew into something that drinks like a smoked Old Fashioned without the bourbon. ¥300-1,500 per 250g (~$41-207 USD).
• Keemun (祁门红茶) from Anhui. The "Burgundy of teas." Cold brewed, it expresses orchid and stone fruit beautifully. ¥400-2,000 per 250g (~$55-276 USD).

Why red teas excel cold: A 2023 Food Chemistry study from Anhui Agricultural University (in Chinese) measured theaflavin extraction across temperatures and found that cold brewing extracted 78% of theaflavins (the orange-red compounds responsible for body and brightness) while pulling only 31% of the astringent thearubigins. The result is a cup that's bright and smooth without the tannic punch of hot-brewed red tea.

For specific cold brew red tea picks, see our roundup of the best Chinese red teas for cold brewing.

Pu-erh cold brew: sheng vs. shou

Pu-erh (普洱) — technically the most famous member of dark tea (黑茶) class — is the polarizing one. Many tea drinkers assume pu-erh requires boiling water and would cold-brew into mud. Wrong. Done correctly, cold-brew pu-erh is a revelation, especially in summer.

Recipe: 12g leaf to 1L cold filtered water (1:80). Rinse first with 95°C water for 10 seconds, discard rinse, then cold brew 8-12 hours at 4°C.

Why the rinse matters: Pu-erh, both sheng and shou, is compressed into cakes and ages with microbial activity on the leaf surface. The hot rinse rehydrates the compressed leaf, lets it open up, and washes away any storage dust. It's not optional for cold brew — without it, the cold water can't penetrate dense compressed leaf efficiently in 12 hours.

Sheng pu-erh (生普洱) — raw, unfermented, ages slowly over decades. Young sheng (1-5 years) cold-brews into something fresh and bright with apricot, pine, and a slight honeyed bitterness. Aged sheng (15+ years) cold-brews with leather, dried fruit, and the camphor character that defines great old sheng. A 2020-vintage Yiwu sheng can run ¥800-3,000 per 357g cake ($110-415 USD); a 2005-vintage Banzhang easily clears ¥30,000+ per cake ($4,140+).

Shou pu-erh (熟普洱) — ripe, accelerated-fermentation, developed in 1973 at the Kunming Tea Factory. Cold brewing shou is genuinely magical: dark cocoa, dates, wet forest floor, no bitterness. This is the most beginner-friendly cold brew in this guide. A solid daily-drinker shou runs ¥200-500 per 357g cake (~$28-69 USD); aged shou with provenance climbs from there.

"Cold-brew shou pu-erh is the gateway drug for serious tea drinking. It's complex, smooth, and almost impossible to mess up. Half the new pu-erh customers we've onboarded since 2023 came in through cold brew." — Wang Jianjun, third-generation tea master and founder of Kunming-based Yunhai Tea Co., interviewed for the 2025 China Tea Marketing annual.

Storage edge: Cold-brew pu-erh holds quality in the refrigerator for 48-72 hours, longer than any other tea in this guide. Good for batch brewing.

For a deeper dive into pu-erh selection and aging, see our pu-erh cake roundup for 2026.

Check current price on Amazon →

Which tea is the best beginner cold brew?

If you're new to cold brewing Chinese tea, start with one of these three picks:

1. Bai Mu Dan (白牡丹) white tea — the most forgiving cold brew. Wide steep window (8-14 hours), modest leaf cost (~$60 USD per 250g for solid grade), and the flavor profile (honey, melon, hay) is universally approachable. 2026 Fuding spring harvest is widely available.
2. Shou pu-erh (熟普洱) — if you like coffee or dark spirits, this is your tea. Smooth, dark, sweet, no bitterness. A 2020-vintage shou cake under $40 USD will deliver world-class cold brew.
3. Dianhong (滇红) red tea — if you grew up drinking iced black tea in the West, Dianhong cold brew will feel familiar but better. Honey, malt, sweet potato, no astringency.

A 2025 consumer survey from the China Tea Marketing Association (in Chinese, n=4,200) asked first-time cold brewers which tea they'd recommend to a friend after their first attempt. White tea won at 41%, shou pu-erh second at 28%, red tea third at 19%. Green and oolong trailed because beginners over-leafed and got astringent results.

Skip green tea cold brew until you've nailed the ratio with white tea first. Counterintuitive, but the chemistry rewards patience.

Check current price on Amazon →

Cold brew Chinese tea: troubleshooting

Problem: Cup tastes thin and watery. Either you under-leafed (try 1:80 instead of 1:120) or you used hot-water brewing equipment (a small infuser basket) that didn't give the leaves enough room to expand. Use a wide-mouth bottle.

Problem: Cup tastes astringent and tannic. Over-leafed or over-steeped. For green teas, never go past 6 hours. For oolongs and pu-erh, never past 14 hours. If the leaves were a tightly-rolled oolong, try a 10-second hot rinse first.

Problem: No aroma. Old leaves. Cold brew is the most demanding test of leaf freshness because hot-brew bitterness can mask flat tea, and cold brew can't hide it. Check the harvest date and pitch anything green older than one year. White tea, oolong, red, and pu-erh have longer windows.

Problem: Cloudy liquor. Two causes. Either tea cream — a natural milky precipitate that forms when polyphenols and caffeine bind at low temperature, more common in red teas — which is harmless and clears as the cup warms. Or microbial growth from leaving the brew above refrigeration temperature; pitch it.

Problem: The brew tastes great at hour 8 but bitter at hour 16. Normal. Past the 12-hour mark for most teas, you're extracting bitter polyphenols faster than aromatic compounds. Strain at peak.

For caffeine-sensitive drinkers calculating overall intake, see our Chinese tea caffeine guide.

FAQ

Q: Can I cold brew with tap water? Skip it. Chinese tap water is heavily chlorinated and the chlorine doesn't dissipate at refrigerator temperatures the way it does when you boil. Use filtered water or low-mineral bottled water (TDS 30-80ppm is ideal). A 2024 sensory panel study from the China National Tea Quality Supervision and Inspection Center (in Chinese) showed filtered water improved cold brew flavor scores by 18% versus tap water across all six tea types.

Q: How long does cold brew tea keep in the fridge? 24 hours for green and yellow teas, 36 hours for oolong and red, 48-72 hours for white and pu-erh. The 2024 China Agricultural University microbial study showed cold brews held at 4°C remained safe for 72 hours but flavor degraded for delicate teas after 24-36 hours.

Q: Can I reuse the leaves? Yes, but only once and only for full-leaf high-grade teas. Refill with fresh cold water after straining the first brew and steep another 8-12 hours. The second brew is lighter — typically 50-60% the strength of the first, per 2024 measurements from Zhejiang University's tea science department — but often more aromatic.

Q: Is cold brew lower in caffeine than hot tea? Yes, dramatically. The 2025 Anhui Agricultural University study measured cold brew Longjing at 28mg caffeine per 250ml versus 65-80mg for the same leaves brewed gong fu. Across all six tea types, cold brew runs 40-60% lower caffeine than hot brew.

Q: What's the best bottle for cold brew? A 1L glass bottle with a fine stainless mesh filter. Plastic absorbs flavors and degrades aromatic compounds over multiple uses; the 2024 Food Packaging and Shelf Life journal found Chinese green tea cold brewed in plastic showed 12% lower aroma compound retention after 24 hours versus glass. Hario, Soma, and the Chinese brand Lavazon all make solid options.

Related Reading

• The Best Chinese Red Teas for Cold Brewing
• How to Brew White Tea: Cold and Hot Methods
• Six Types of Chinese Tea: Complete Guide
• Gong Fu Brewing: The Chinese Method Guide
• Chinese Tea Caffeine Guide
• How to Brew Chinese Green Tea: Glass Style
• Chinese Green Tea Storage: Keeping Freshness
• Chinese Tea and Food Pairing

Sources

• Journal of Food Science (2023). "Comparative extraction kinetics of catechins and caffeine in Chinese green and oolong teas at variable temperatures." — peer-reviewed.
• Food Chemistry (2024). Zhejiang University Tea Science Department. "Amino acid to polyphenol ratios in cold versus hot extraction of Chinese green teas." — peer-reviewed.
• China Tea Marketing Association, 2026 Annual Report (in Chinese). https://www.puercn.com/ — industry data on cold brew consumption.
• iiMedia Research, "2026 China Cold Brew Tea Market Outlook" (in Chinese).
• Anhui Agricultural University, 2025 study on caffeine extraction differential between hot and cold brewing methods (in Chinese).
• China Agricultural University Tea Science Department (2024). Microbial safety of cold-brewed tea at refrigeration temperatures (in Chinese).
• Hunan Agricultural University, 2024 polyphenol content survey of yellow teas (in Chinese).
• Fujian Agriculture and Forestry University, 2025 paper on hybrid hot-rinse / cold-brew method for aged white tea (in Chinese).
• 2025 China Tea Industry Annual Report — Dr. Liu Zhonghua interview (in Chinese).
• Food Packaging and Shelf Life (2024). Glass vs. plastic for cold brew aroma retention.
• Baidu Baike, "中国六大茶类" reference page (in Chinese): https://baike.baidu.com/item/%E4%B8%AD%E5%9B%BD%E5%85%AD%E5%A4%A7%E8%8C%B6%E7%B1%BB/5768453

— The Tea Atlas Team