Under the New GI, Only Green Tea Is Considered "Japanese Tea"
Wakocha, oolong, white, and Japan's one-of-a-kind post-fermented teas. All grown and produced in Japan. None of them qualify.
On July 10, 2026, Japan registered “Japanese Tea” as a geographical indication. You would assume that means tea from Japan. It does not. It means green tea from Japan, and only green tea, which is a strange thing for a label that spends the word “Japanese” so freely.
A geographical indication cannot be filed by a country or a ministry on its own. It has to be applied for and policed by a registered producer organization that defines the product and enforces the mark. So before the definition, it helps to meet the body that wrote it.
“Japanese Tea” belongs to the Japan Tea Central Association, a public interest incorporated association [1]. Its members, though, are the industry itself: three national federations for the country’s tea growers, merchants, and exporters; four prefectural tea chambers, from Shizuoka, Kyoto, Kagoshima, and Mie; and three of the largest companies in Japanese tea, Ito En, Suntory Beverage and Food, and Mitsui Norin [2]. It has also maintained the industry’s Green Tea Labeling Standard since 1991 [4], so the coalition that has spent thirty-five years deciding how the trade names its tea now decides what may legally be called “Japanese Tea” under the GI system.
The definition they chose is narrow. The production method filed with the registration says aracha is made by “stopping the action of the oxidation enzymes in the leaf” through steaming or pan-firing [3]. In other words… green tea. Killing those enzymes is what makes tea green. It is also exactly what you must not do to make black tea, oolong, or white tea.
So alongside its five registered names (日本茶, Nihon Cha, Nippon Cha, Japanese Tea, Japan Tea) [3], the mark excludes:
wakocha, Japanese black tea
Japanese oolong
Japanese white tea
post-fermented teas like goishicha and awabancha, which are microbially fermented rather than oxidized, and which the association’s amended standard shuts out by limiting the mark to “unfermented tea” [4]
Japan’s own agriculture ministry sorts tea into six classes by fermentation: green, white, yellow, oolong, black, and post-fermented [5]. The GI recognizes one. Japan makes teas in at least five, so the mark turns away four of the five it actually grows.
All of them grown on Japanese soil, by Japanese farmers, in Japanese factories. When the hardworking farmers producing black tea, white tea, oolong, and post-fermented tea woke up on July 11, they were no longer producing “Japanese Tea” by the GI definition.
And the post-fermented class it excludes is the one where every Japanese entry is a tea only Japan makes. Even the GI mark’s own application form makes the point: it asks which products you plan to export and lists eleven teas to tick, from sencha to matcha to hojicha, every one of them green [6].
By volume, it barely excludes anything
The excluded teas don’t contribute much in volume to Japan’s total tea production, but contribute volumes to the cultural and flavor profile diversity of Japanese Tea. Japan grows about 75,000 tonnes of tea a year, overwhelmingly green [7]; domestic black tea is about 200 tonnes [8], and oolong, white, and post-fermented teas together stay well under one percent. So the exclusion removes a fraction of a percent, and that fraction is the most distinctly Japanese tea in the country.
Nobody in China is faking awabancha, and nobody anywhere is faking goishicha: lactic-fermented, sun-dried teas made in single valleys in Tokushima and Kochi, with no equivalent anywhere else in the world. By the logic of a geographical indication they are the most obvious things in Japan to recognize, and the first things left out.
Wakocha is not a novelty either
Japanese black tea has a history as long as the mechanized sencha the GI celebrates. In the 1870s the Meiji government sent Tada Motokichi (Japan’s very own Robert Fortune) to China and India to learn black tea manufacture and built an export industry aimed at Europe, alongside the green tea it sold to America; Japan bred its own black tea cultivars, benihomare and later benifuuki [9]. Production ran until 1971, when import liberalization let in cheap foreign black tea and the industry collapsed, before reviving as a craft movement in the 2000s [10].
In its own registration filing, the Japan Tea Central Association leans on this heritage to justify the English name, noting that Meiji export chests bore labels reading “JAPAN TEA” [3]. Those chests were mostly green, but black tea was part of the same export drive, and it grew into a serious export tea in its own right: about 8,500 tonnes produced at its 1955 peak [11]. That’s about 30% more than how much matcha was produced in all of Japan in 2025 for comparative reference.
Asked why, the committee answered with branding
Asked directly why wakocha was left out, the association said the image “Japanese Tea” carries at home and abroad is green tea, and green tea has the longer history, so the scope was kept to green [12]. Asked whether black tea might be added later, it said that would depend on how overseas markets react to wakocha in future [12]. The category, in other words, is drawn by branding image rather than by what the words mean, and inclusion is supposedly made contingent on foreign demand. The writer who reported the exchange said seeing wakocha, oolong, goishicha, and awabancha shut out was a shock [12].
The Shizuoka Prefecture Tea Industry Council, a full member of the association that registered the GI, welcomed the mark and, in the same registration coverage, asked that it be revised to cover fermented teas such as wakocha and oolong, since it reaches only sencha, matcha, and hojicha [13].
The good half of the sword
The GI does something real. In countries that recognize Japanese GIs, chiefly the EU and the UK, Japan can now use local law to pull fraudulent “Japanese Tea” off shelves [13]. And the fraud is real: Marukyu-Koyamaen, one of Uji’s oldest matcha houses, spent years fighting Chinese sellers who cloned its packaging and name, with estimated losses put at more than 300 million yen, and in 2020 won a ruling that voided a copycat mark because “Uji” is a famous foreign place [14][15]. Getting Chinese matcha labeled as Japanese off a shelf in Madrid or Milan is good for Japanese producers, for consumers, and even for honest Chinese sellers, who should compete under their own names.
And the timing is really about matcha. Green tea exports roughly doubled in 2025 to about 72.1 billion yen on the global matcha boom [13], against the first matcha shortage on record. Nobody abroad is counterfeiting Japanese wakocha, because nobody abroad is fighting over it. They are fighting over matcha, which is green, so a green-only mark captures essentially all the money the association is trying to defend. Its own guideline is explicit that the target is foreign “Uji matcha” [16]. A coherent commercial motive, just not a coherent reason to name the thing “Japanese Tea.”
Over the past ten years it is clear that Japan is loosing the quantity war over matcha production, where China has overtaken Japan as the largest producer of matcha in the world. But this GI registration not only a powerful legal mechanism to police counterfeit products, but to give a premium halo to “all” “Japanese tea” to compete in the quality war. Isamu Nakayama, the Director of the Japan Food Overseas Promotion Center (JFOODO) said “We will continue to explain the background and culture of Japanese tea production and devise promotional strategies so that people will buy it even if it is expensive“ [12].
The halo goes to the tea that needs it least
A GI does not only enforce; it confers a halo, the way a DOP on cheese or an AOC on wine signals the protected, authentic, better one. The GI hands that signal to green teas, especially matcha which are not suffering from any demand problems in the current environment, while withholding it from the small, singular teas that could use a lift. The wakocha maker and the awabancha crafts person, the producers for whom a premium mark would actually change something, are the ones told to wait on overseas reaction.
Remember what the association is, in law: a public interest corporation, a body the state certifies as serving the general public. Its public interest is Japanese tea. So if you grow wakocha in Shizuoka or make awabancha in a Tokushima valley, the institution charged with protecting Japanese tea and its culture has not merely declined to help you. It has declined to count what you make as Japanese tea at all.
How does this new GI definition not spit in the face of all the tea producers contributing to the cultural richness and diversity of Japanese tea?
Reality Distortion
The Japanese tea industry has a serious crisis of honesty. They’re the true masters of reality distortion fields. “Uji Tea” doesn’t have to come from Uji. And now Japanese Tea and green tea are apparently synonyms. Japan defines tea by the plant, Camellia sinensis, not by what you do to the leaf. So how can you be intellectually honest and not include Japanese Black Tea as “Japanese tea”?
If the mark protects green tea, call it “Japanese green tea” not “Japanese tea”. If it keeps the name Japanese Tea, it should cover Japanese tea, all six classes, starting with the fermented ones no one else on earth makes. What it should not do is tell a Shizuoka black tea farmer, or the last families making awabancha, that tea they have grown in Japan for generations is not Japanese tea. That is a decision about a technical definition quietly reclassifying a whole country’s worth of tea out of its own name.
Sources
MAFF, public notice of GI application No. 310 “Nihoncha,” naming the producer organization as the Japan Tea Central Association, a public interest incorporated association. maff.go.jp/j/shokusan/gi_act/notice/pnApplication/0310_index.html
Japan Tea Central Association, Public Disclosures: articles of incorporation, member and officer rosters. nihon-cha.or.jp/pdf/r05-openinfo.pdf
MAFF, Register of Specified Agricultural, Forestry and Fishery Products, Registration No. 179 “Nihoncha,” registered July 10, 2026. maff.go.jp/j/press/yusyutu_kokusai/chizai/attach/pdf/260710-1.pdf
Japan Tea Central Association, Green Tea Labeling Standard (緑茶の表示基準), established 1991, amended July 10, 2026. nihon-cha.or.jp/pdf/hyoujikijyun.pdf
MAFF, “Tea of many tastes and aromas,” aff magazine, April 2022. maff.go.jp/j/pr/aff/2204/spe1_03.html
Japan Tea Central Association, GI Mark Use Notification Requirements for Japanese Tea, July 10, 2026. nihon-cha.or.jp/gi-file/gi04_20260710.pdf
MAFF, “Tea Situation” (茶をめぐる情勢), via MAFF’s tea page. maff.go.jp/j/seisan/tokusan/cha/ocha.html
Nihoncha Magazine, “What is wakocha.” nihoncha-magazine.com/?p=58
Kirin History Museum, History of Japanese Black Tea. museum.kirinholdings.com/history/tea/story6b.html
Maruko Kocha, history of domestic black tea. marikotea.com/domestictea.html
World Green Tea Association (O-CHA NET), “Japanese black tea.” o-cha.net/teacha/syurui/nihonkoucha.html
Nihoncha Navigator (Tomoko), Yahoo! News Expert, on the GI announcement. news.yahoo.co.jp/expert/articles/84493979276a5984cb6ec8c0e6b987dc1a33edd6
Nihon Nogyo Shimbun, “’Nihoncha’ Added to GI: First Nationwide Scope for an Agricultural Product,” July 11, 2026. news.yahoo.co.jp/articles/8e1331a64244d8f894225654821cd2e44e9d93b8
Nihon Shokuryo Shimbun, on Chinese imitation of Uji matcha. news.nissyoku.co.jp/news/ooi20191210010835043
Marukyu-Koyamaen, notice on the CNIPA invalidation ruling for the disputed “Uji Koyamaen” mark. marukyu-koyamaen.co.jp/information/post-133/
Japan Tea Central Association, GI Mark Usage Guideline, July 2026. nihon-cha.or.jp/gi-file/gi05_guideline20260710.pdf
Great points to call out. I had no clue that it was strictly for green tea rather Japanese tea which begs the question what was the intention but nevertheless a small step forwardm
Very interesting, thank you for sharing 🙏