Food · Fermented foods
Kōshu-Beef (Wagyu × Holstein F1 Crossbred)
交雑牛肉 (Kōshu-gyū-niku)
Also known as: Kōshu-gyū, F1 crossbred beef, Wagyu × Holstein, F1 Wagyu cross, 国産牛 (F1), 交雑種
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| Category | Food |
|---|---|
| Japanese labeling name | 牛 交雑牛肉 — ばら / もも / ヒレ / リブロース |
| Common Japanese notations | 交雑牛, F1, 国産牛 (F1), 交雑種, 和牛×ホルスタイン F1 |
| Origin | F1 crossbred beef — **Wagyu (sire, typically Japanese Black 黒毛和種) × Holstein (dam) hybrid**; principal production Hokkaido, Tohoku, Kyushu; **balances Wagyu marbling/flavor with Holstein production efficiency**; positioned as **mid-tier between standard Holstein dairy-steer beef and premium pure-Wagyu**; commonly labeled 'kokusan-gyū' (国産牛) or 'F1' but **NOT permitted to be called 'Wagyu'** |
| Typical functions | Mid-tier premium domestic beef — balances marbling and price, Yakiniku, sukiyaki, shabu-shabu mid-tier supply, Restaurant 'wafū-steak' channel raw material, Beef-bowl premium upgrade option (gyūdon premium tier), 4 standard cuts: bara, momo, hire, rib-rōsu |
| Regulatory status in Japan | Standard food labeling. **Origin and breed disclosure permitted (kōshu / F1 may be declared).** **Beef JAS-recommended-disclosure allergen.** **'Wagyu' label PROHIBITED — F1 crossbred is not permitted to use 'Wagyu' or '和牛' labels — only purebred JBS-certified animals qualify. Beef-traceability act ID-tracking required.** |
Kōshu-gyū (交雑牛 / F1) is Japanese F1 crossbred beef — **Wagyu sire × Holstein dam** hybrid. Mid-tier between Holstein dairy-steer beef and pure Wagyu. Hokkaido, Tohoku, Kyushu production. **'Wagyu' label is PROHIBITED — only JBS-certified purebreds qualify.**
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Classification
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Product applications
Functions
Regulatory tags
Origin
Common OEM product categories
Finished-product categories where Japanese OEM manufacturers commonly formulate with this ingredient.
- Fresh kōshu-gyū retail (mid-tier 'kokusan-gyū' positioning)
- Foodservice yakiniku/sukiyaki B2B
- Frozen-block B2B
Ingredient profile
F1 crossbred Bos taurus — Wagyu sire (Japanese Black) × Holstein dam.
OEM applications
Mid-tier domestic premium beef (marbling/price balance).
Yakiniku, sukiyaki, shabu-shabu mid-tier.
'Wafū-steak' channel.
Premium-tier gyūdon.
4 standard cuts: bara, momo, hire, rib-rōsu.
For OEM: 4-cut fresh retail (kokusan-gyū / F1 label), foodservice yakiniku B2B, frozen-block B2B.
Regulatory classification in Japan
Standard food labeling.
**'Wagyu' label PROHIBITED for F1 crossbred — only JBS-certified purebreds qualify.**
**Beef JAS-recommended-disclosure allergen.**
Beef-traceability act ID-tracking required.
Regulatory classification in other markets
| EU | Beef is not a major-allergen. EU traceability and BSE-monitoring required. |
|---|---|
| USA | USDA inspection equivalence required. **'Wagyu' US labeling rules differ — US permits Wagyu-cross labeling (varies by state).** |
| China | Premium import market. |
| Korea | Premium import market. |
Market reference formulations
Example finished products will be added after verification.
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Quick answers
- What is Kōshu-Beef (Wagyu × Holstein F1 Crossbred)?
- Kōshu-gyū (交雑牛 / F1) is Japanese F1 crossbred beef — **Wagyu sire × Holstein dam** hybrid. Mid-tier between Holstein dairy-steer beef and pure Wagyu. Hokkaido, Tohoku, Kyushu production. **'Wagyu' label is PROHIBITED — only JBS-certified purebreds qualify.**
- What is the regulatory status of Kōshu-Beef (Wagyu × Holstein F1 Crossbred) in Japan?
- Standard food labeling. **Origin and breed disclosure permitted (kōshu / F1 may be declared).** **Beef JAS-recommended-disclosure allergen.** **'Wagyu' label PROHIBITED — F1 crossbred is not permitted to use 'Wagyu' or '和牛' labels — only purebred JBS-certified animals qualify. Beef-traceability act ID-tracking required.**
- What products typically use Kōshu-Beef (Wagyu × Holstein F1 Crossbred)?
- Fresh kōshu-gyū retail (mid-tier 'kokusan-gyū' positioning) / Foodservice yakiniku/sukiyaki B2B / Frozen-block B2B
- Where does Kōshu-Beef (Wagyu × Holstein F1 Crossbred) come from?
- F1 crossbred beef — **Wagyu (sire, typically Japanese Black 黒毛和種) × Holstein (dam) hybrid**; principal production Hokkaido, Tohoku, Kyushu; **balances Wagyu marbling/flavor with Holstein production efficiency**; positioned as **mid-tier between standard Holstein dairy-steer beef and premium pure-Wagyu**; commonly labeled 'kokusan-gyū' (国産牛) or 'F1' but **NOT permitted to be called 'Wagyu'**
- What is the INCI / JSCI labeling name for Kōshu-Beef (Wagyu × Holstein F1 Crossbred)?
- JSCI: 牛 交雑牛肉 — ばら / もも / ヒレ / リブロース
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References
- 文部科学省 (Ministry of Education, Culture, Sports, Science and Technology) Standard Tables of Food Composition — 牛 交雑牛肉 各部位
Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.