Amaou
あまおう
Amaou is a large, high-Brix premium strawberry developed by the Fukuoka Agricultural Research Center and grown exclusively in Fukuoka Prefecture under JA Zen-Noh Fukuren's trademark control. The brand name encodes four criteria — Akai (red), Marui (round), Ookii (large), Umai (tasty) — and the registered cultivar name is 'Fukuoka S6'. It is one of Japan's defining winter-to-spring luxury fruit gifts.
About Amaou
Amaou is a large-fruited strawberry developed by the Fukuoka Agricultural Research Center. Its registered cultivar name is 'Fukuoka S6' (Japan Plant Variety Protection No. 12572, registered January 19, 2005; breeder's right expired January 19, 2025). Although PVP coverage has lapsed, the 'Amaou' brand name itself remains a registered trademark held by JA Zen-Noh Fukuren, so only strawberries grown in Fukuoka Prefecture and shipped through the official JA channel can legally carry the Amaou label. The name encodes the brand's four criteria — Akai (red), Marui (round), Ookii (large), Umai (tasty) — and individual berries routinely exceed 20 g, with top 'EX' grades reaching 40 g. Amaou anchors Japan's winter-to-spring premium gift culture (Oseibo, Christmas, Valentine's Day, White Day), and Fukuoka — second only to Tochigi in national strawberry output — accounts for roughly 10% of Japan's strawberry production, with Amaou the dominant cultivar within that share.
Taste & Texture
Amaou's signature is the combination of a large 20-40 g berry, deep crimson flesh and a high-Brix, moderate-acid flavour profile. Both sugar and acidity sit above the supermarket-strawberry baseline, giving a flavour that is rich and aromatic rather than merely sweet, with a long finish on the palate. Cultivation is almost entirely 'forcing culture' under heated greenhouses; nighttime temperature control lets Fukuoka ship Amaou from December through May.
Sensory profile
- Size: typical 20 g per berry; 'EX' grade ~40 g; flagship '5L' pack berries reach ~50 g each
- Brix (sugar): 9.6 – 13°Bx as standard, with peak January–February fruit reaching 15°Bx
- Acidity: around 0.74% — high enough to keep the sweetness from feeling cloying and to leave a long aromatic finish
- Colour: skin and flesh are both deep red and uniformly coloured to the core
- Texture: firm flesh with excellent shipping tolerance
Grade and class system
- Grades (Shu / Yu / Ryo for quality) plus size classes 2L, 3L, 4L, 5L, DX (Deluxe) and EX (Excellent)
- DX / EX grades ship in jewel-case boxes through department-store channels (Isetan, Sembikiya, Takashimaya) for gift use
- A 5L 450 g jewel-case can retail at ~¥11,000 (≈ US$70), the top of the Amaou price ladder
Season
PEAK
Jan – Feb
Top Production Areas
* Major producing areas reflect general shipment trends; rankings shift with year and statistical scope.
Variety Comparison
vs. Tochiotome
Tochiotome is Tochigi's flagship cultivar and the highest-volume strawberry in Japan. The berries are slightly smaller and softer than Amaou, with a gentle, well-balanced sweet–acid profile aimed at everyday eating. Amaou, by contrast, is built for the premium and gift segment: bigger, deeper red, and far more aromatic, with both Brix and acidity dialled higher to create a richer, longer finish. At Japanese retail, Amaou typically sells at a 20–30% premium over Tochiotome of the same grade.
vs. Beni-hoppe
Beni-hoppe is Shizuoka's premium large-fruited cultivar. Like Amaou it sits in the high-Brix / high-acid quadrant of the strawberry map, but the shape is a longer cone with a partly white interior, and the acidity reads as sharper and more cutting at the finish. Amaou is rounder, fully red to the core, and trades that sharp acid for a more aromatic, lingering finish. Together they define the upper end of Japan's premium strawberry segment, and many gift shoppers pick between them on flavour preference rather than perceived rank.
Breeding History
Amaou was born in 2005 at the Fukuoka Agricultural Research Center. Working to overcome the soft flesh and short shelf life of the then-dominant 'Toyonoka' variety, breeders crossed 'Kurume 53' with the experimental line '92-46' and registered the result as Plant Variety Protection No. 12572. From the outset the development was framed as a prefecture-level strategic product — 'Fukuoka's flagship strawberry for the luxury market' — emphasising the balance of size, deep red colour, high Brix and judicious acidity. In parallel with the cultivar registration, JA Zen-Noh Fukuren secured the 'Amaou' trademark (Reg. No. 4615573 and related registrations) and put a tight seedling-control regime in place so that growers outside Fukuoka cannot acquire the planting stock through legitimate channels. The result is a 'place + variety + brand' triple lock that has kept Amaou synonymous with Fukuoka for two decades. On January 19, 2025, the 20-year PVP term elapsed and the breeder's right lapsed — sometimes called the '2025 problem' in the Japanese press. In principle, Fukuoka S6 genetics could now be planted elsewhere, but the 'Amaou' brand name itself remains a live trademark. Combined with continued seedling-flow controls by the prefecture, the brand's de facto exclusivity to Fukuoka is unchanged for consumers. On the export side, MAFF and JETRO have designated strawberries as a strategic export item, with Hong Kong, Singapore and Taiwan as the priority markets. Amaou's large-berry, deep-red, high-Brix gift profile fits the premium Japanese-grocery channels in those markets, and the brand is routinely featured as a flagship cultivar in Japan's international strawberry promotion.
- Breeder
- Fukuoka Agricultural Research Center
- Parentage
- Kurume 53 × 92-46
- Registered
- 2005
- Trademark Reg. No.
- Trademark Reg. No. 4615573 et al.
Source: JPO Trademark Registry (J-PlatPat) / Breeder / brand council publication
How to Choose
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Genuine Amaou ships only from Fukuoka Prefecture under the JA Zen-Noh Fukuren channel, so the easiest authenticity check is three things on the packaging: the 'Amaou' logo near the stem image, an origin statement (福岡県産 / Product of Fukuoka, Japan), and a JA shipping seal.
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Picking from a pack: look for a vivid green calyx that curls back, a glossy deep-red skin with no bruises or pale shoulders, and uniform fill.
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Grade and size labels (2L–5L, DX, EX) help match purpose: EX/DX go in jewel-case gift boxes through department stores, while 2L–3L are everyday eating grades.
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Outside Japan, the most reliable retail channel is premium Japanese-grocery chains in Hong Kong, Singapore and Taiwan (Don Don Donki, Meidi-Ya, Yata, City'super) carrying export-spec JA Zen-Noh Fukuren packs.
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In North America, fresh Amaou occasionally appears in high-end Asian markets in New York and Los Angeles, but it is rare; products sold online under labels like 'Amaou flavour' are usually flavour-using confectionery (KitKat, Pocky), not fresh Amaou — read the ingredient list before assuming.
How to Store
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Amaou is a 'eat-fresh' strawberry — flavour drops fast after harvest.
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Store unwashed with the calyx still attached, single-layered in a covered container lined with a paper towel to absorb excess moisture, in the refrigerator crisper at around 4°C (40°F).
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Eat within 1–2 days for the best flavour and rinse only just before eating.
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For longer storage, hull and freeze the berries (single layer first, then bag); frozen Amaou is excellent in sorbet, jam, mochi fillings and bakery use. When you receive a courier or gift box, open it on arrival, remove any bruised berries, and refrigerate the rest.
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Lightly pressure-marked fruit is best eaten the same day or routed to cooking.
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Amaou is shipped fully red and ripe, so it will not gain sweetness after delivery — there is no 'ripening on the counter' upside, only quality loss.
Frequently Asked Questions
Is Amaou grown anywhere outside Fukuoka Prefecture?
Yes and no. All fresh strawberries sold as 'Amaou' come from Fukuoka and ship through JA Zen-Noh Fukuren. On January 19, 2025 the Plant Variety Protection right for 'Fukuoka S6' (PVP Reg. No. 12572) lapsed at the end of its 20-year term, so in principle the genetics can now be planted elsewhere — but the name 'Amaou' itself is a separate registered trademark (Reg. No. 4615573 and related), held by JA Zen-Noh Fukuren, which only Fukuoka growers may use. Combined with the prefecture's continued seedling-flow controls, the brand remains effectively exclusive to Fukuoka.
Can I buy fresh Amaou outside Japan?
Yes, in a limited number of Asian markets. Air-freighted Amaou is sold December–April through premium Japanese-grocery chains in Hong Kong, Singapore and Taiwan (Don Don Donki, Meidi-Ya, City'super, Yata). Typical retail in Hong Kong is HK$178–198 (≈ US$23–25) per twin pack, and an EX-grade 400 g pack in Singapore runs S$30–35. North American and European mainstream supermarkets do not carry fresh Amaou; it only occasionally surfaces in high-end Asian grocers in New York and Los Angeles. Note that Amazon and other e-commerce listings tagged 'Amaou flavour' are almost always confectionery (KitKat, Pocky) that uses Amaou juice or powder — not fresh fruit.
What strawberries make a good substitute for Amaou outside Japan?
There is no exact equivalent, but in North America and Europe three commercial cultivars come closest to the Amaou experience in the large-berry / deep-red / balanced sweet-tart quadrant: Driscoll's 'Sweetest Batch' (bred specifically for high flavour), 'San Andreas' (California-bred, day-neutral, firm and aromatic) and 'Albion' (firm, consistently sweet, widely available). All three peak in the Northern Hemisphere field season (May–July), the opposite calendar from Amaou's December–May greenhouse window, so they fill the off-season for international readers. They will not match the 40 g EX-grade Amaou for sheer scale, but ripe specimens work well in Japanese-style strawberry shortcake.
When is Amaou in season, and when is it at its best?
Amaou ships from December through May, peaking in January and February. Cultivation is greenhouse 'forcing culture' — heated houses with nighttime temperature control — which is what lets Fukuoka cover the entire Christmas / Valentine's / White Day / cherry-blossom gifting window. Sugar accumulates slowly under cold winter conditions, so Brix is highest in January and February. As ambient temperatures rise from April onward Brix tends to drop, so the practical mental model is: through March = peak quality; April–May = better value with slightly lower sugar.
Why is Amaou such a popular gift in Japan?
Amaou owns the premium-gift slot for four reasons that line up at once: (1) the 20+ g berries are visually striking when the box opens; (2) the top 'EX' and '5L' grades ship in jewel-case packaging through department stores like Isetan, Sembikiya and Takashimaya; (3) the December–February peak overlaps Japan's biggest gift-giving windows (Oseibo year-end, Christmas, Valentine's Day, White Day); and (4) single-channel brand control by JA Zen-Noh Fukuren keeps quality remarkably consistent at gift price points. A top-end 5L box (about 450 g) can hit ¥11,000 (≈ US$70), squarely inside Japan's well-developed 'fruit as luxury gift' category.