Japanese Tea and Matcha Data
Every dataset One with Tea publishes on Japanese green tea and matcha, in one place. Exports, import prices, production and history, each built from a named primary source, each downloadable as a CSV and free to reuse under CC BY 4.0. Journalists, researchers and buyers: take what you need and cite us.
The datasets
Japan Green Tea Export Tracker
12,863 t exported in the 12 months to 2026-08, average $50.32/kg (up 58% on the year before)
Source: UN Comtrade, Japan-reported exports, HS 090210 + 090220. Updated: monthly (UN Comtrade, ~2-3 month reporting lag).
CSV · Read the data and method
Cite: One with Tea (2026). Japan Green Tea Export Tracker. https://onewithtea.com/blogs/news/2026-matcha-shortage-explained. CC BY 4.0.
Japan Powdered Green Tea (Matcha) Exports by Destination
Powdered green tea (the customs category that includes matcha) was 84% of Japan's green tea export value in 2025: 8,718 t, ¥60.4 billion, value up 122% on the year; top buyer the United States (42%)
Source: Trade Statistics of Japan (Ministry of Finance) via e-Stat, codes 0902.10-100 + 0902.20-100 (powdered) vs -900. Updated: monthly (e-Stat, Ministry of Finance trade statistics; current year provisional, ~1-2 month lag).
CSV · Read the data and method
Cite: One with Tea (2026). Japan Powdered Green Tea (Matcha) Exports by Destination. https://onewithtea.com/blogs/news/2026-matcha-shortage-explained#powdered-green-tea. CC BY 4.0.
Matcha and Japanese Tea Production by Country and Prefecture
Japan: ~78,100 t of tea, ~4,000 t matcha-style; Kagoshima now Japan's #1 tencha grower
Source: MAFF crop statistics, prefectural reports, FAO; assembled. Updated: annual (MAFF crop statistics, FAO); checked monthly, rewritten only when a CSV changes.
CSV · Read the data and method
Cite: One with Tea (2026). Matcha and Japanese Tea Production by Country and Prefecture. https://onewithtea.com/blogs/news/where-is-matcha-grown-global-production-map. CC BY 4.0.
Matcha Import Index (US customs, Japanese green tea)
Organic Japanese green tea landed at $60.00/kg vs $73.55/kg conventional in 2026-08
Source: US Census Bureau International Trade API. Updated: quarterly (Jan, Apr, Jul, Oct 15; monthly US Census source).
CSV · Read the data and method
Cite: One with Tea (2026). Matcha Import Index (US customs, Japanese green tea). https://onewithtea.com/pages/japanese-matcha-price-tracker. CC BY 4.0.
Matcha Market Index (US Amazon shelf snapshot)
Price, origin and grade across the US Amazon matcha shelf
Source: OWT snapshot of the US Amazon matcha shelf. Updated: quarterly (com.lovepixel.owt-matcha-index).
CSV · Read the data and method
Cite: One with Tea (2026). Matcha Market Index (US Amazon shelf snapshot). https://onewithtea.com/pages/matcha-market-index. CC BY 4.0.
Japanese Tea Production by Prefecture
Crude tea, first flush and tencha by prefecture
Source: MAFF crop statistics, prefectural reports. Updated: annual.
CSV · Read the data and method
Cite: One with Tea (2026). Japanese Tea Production by Prefecture. https://onewithtea.com/pages/japan-tea-production-map. CC BY 4.0.
Tea Chronology (486 dated entries)
486 dated entries, each with its own citation
Source: Ukers, All About Tea (1935), per-entry citations. Updated: static, revised with research.
CSV · Read the data and method
Cite: One with Tea (2026). Tea Chronology (486 dated entries). https://onewithtea.com/pages/tea-chronology. CC BY 4.0.
Tea Caffeine and L-theanine Comparison
Caffeine and L-theanine per serving, source per row
Source: per-row published sources. Updated: static.
CSV · Read the data and method
Cite: One with Tea (2026). Tea Caffeine and L-theanine Comparison. https://onewithtea.com/pages/tea-caffeine-comparison. CC BY 4.0.
How we work
Every figure traces to a primary source named on its page: Japan's customs data via UN Comtrade and e-Stat, US Census Bureau import entries, Japan's agriculture ministry crop statistics. Where a number is our estimate, the page says so. Where a source and our figure disagree, we publish the gap. Found an error? Tell us and we will fix it in the changelog.
Buying matcha for a business?
The same data drives our sourcing. See wholesale matcha, matcha for cafés and bubble tea shops.
Last updated November 14, 2026.