Food · Fermented foods

Ohmugi (Barley)

おおむぎ (Ohmugi)

Also known as: Ohmugi, Barley, Hordeum vulgare, 大麦, 押麦 (oshimugi), 麦こがし, 米粒麦

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At a glance

Category	Food
Japanese labeling name	おおむぎ
Common Japanese notations	おおむぎ, 大麦, オオムギ, 押麦, 米粒麦, もち麦, 麦こがし, 七分つき押麦
Origin	Barley (Hordeum vulgare); cultivated in Japan since prehistoric times; principal modern domestic regions Saga, Fukuoka, Tochigi, Saitama; significant import volumes from Australia, Canada, USA for industrial use (mugi-cha, miso, shochu, animal feed); domestic Japan production focuses on naked barley (hadakamugi, mochi-mugi) for premium retail
Typical functions	Mugi-meshi (麦飯) — barley-rice blend, foundational health-positioned retail rice category, Mochi-mugi (もち麦) — high β-glucan glutinous barley, FFC-registered functional retail product, Mugi-cha (麦茶) — roasted barley tea, major beverage OEM category, Miso production — barley-koji is the foundation of mugi-miso (mugi-miso production input), Shochu production — mugi-shochu (Iki Island, Oita) is a major regional spirit category
Regulatory status in Japan	Barley follows standard agricultural product labeling. Domestic Japan-grown barley (hadakamugi, mochi-mugi) commands premium positioning vs. imported barley (Australian-origin dominates the volume mugi-cha and miso/shochu input markets). Mochi-mugi is widely positioned as a Foods with Function Claims (FFC) product for β-glucan content and post-prandial blood glucose / cholesterol claims. Barley contains gluten (similar to wheat) — though not a JAS-designated allergen, it must be disclosed as a wheat/gluten-related ingredient.

Ohmugi (おおむぎ) — barley (Hordeum vulgare) — is one of Japan's most versatile grain crops, with deep historical roots and a dual modern role: as a major industrial commodity grain (the foundation of mugi-cha, mugi-miso, and mugi-shochu — three of Japan's volume-leading processed-food and beverage categories) and as a premium functional health grain (with mochi-mugi β-glucan products driving substantial growth in the FFC retail category since 2017). Industrial barley supply is dominated by Australian imports (Saga, Fukuoka, Tochigi, Saitama lead domestic production), while premium retail and functional positioning is increasingly driven by domestic-origin claims, particularly for mochi-mugi and hadakamugi varieties. Nutritionally, barley is notable for soluble fiber β-glucan content (3-7g per 100g in mochi-mugi vs. ~0.5g in white rice), which underpins the modern functional food positioning and supports retail β-glucan health claims through the FFC pathway.

Classification

Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.

Product applications

Functions

Flavoring

Regulatory tags

Culinary ingredient

Origin

Plant-derived

Used in (typical product categories)

Finished-product categories that commonly include this ingredient in Japanese-market formulations.

Oshimugi (押麦 — pressed barley flake, the volume retail format for mugi-meshi)
Kometsubu-mugi (米粒麦 — rice-grain shaped barley, blends with white rice)
Mochi-mugi (もち麦 — glutinous barley, premium high β-glucan retail)
Hadakamugi (はだか麦 — naked barley, the premium domestic Japan category)
Mugi-cha raw material (roasted whole barley grain or 6-row hulled barley)
Mugi-koji (麦麹 — barley koji for mugi-miso production)
Mugi-kogashi (麦こがし — roasted barley flour, traditional confectionery)

What it is

Ohmugi is barley (Hordeum vulgare), a cool-season grass cultivated globally and one of the world's oldest cultivated grains. Japan distinguishes several major types: 6-row hulled barley (rokujou-mugi, the traditional industrial variety, used for mugi-cha and mugi-miso production), 2-row hulled barley (nijou-mugi, the brewing variety used for shochu and beer), naked barley (hadakamugi, where the hull threshes free — preferred for food use), and mochi barley (mochi-mugi, a glutinous-starch variety with very high β-glucan content used for functional food positioning).

Processing forms include: oshimugi (押麦, pressed barley flake — the standard retail mugi-meshi format), kometsubu-mugi (米粒麦, rice-grain-shaped barley designed to blend with white rice), maru-mugi (丸麦, whole hulled barley), seven-bun-tsuki oshimugi (七分つき押麦 — partially polished pressed barley), and mochi-mugi in pressed or whole form. Mugi-cha raw material is roasted whole grain or hulled grain. Barley koji (mugi-koji) is the substrate for mugi-miso production.

Nutritionally, oshimugi (the standard retail format) per 100g provides 329 kcal, 6.7g protein, 1.5g fat, 78.3g carbohydrates with 12.2g dietary fiber (notably higher than rice or wheat) and significantly higher β-glucan (soluble fiber) content than other grains. Mochi-mugi specifically can contain 3-7g β-glucan per 100g (vs. ~0.5g in white rice), which is the basis for FFC functional health claims around post-prandial blood glucose moderation and LDL cholesterol management. Mineral content is also notable: K 220mg, Mg 40mg, Fe 1.0mg per 100g.

Typical uses in Japanese products

Mugi-meshi (麦飯) — barley-rice blend, the foundational health-positioned rice category. Standard preparation blends 10-30% oshimugi or kometsubu-mugi with white rice. Once a wartime austerity food, mugi-meshi has been completely repositioned as a health and dietary fiber food and has driven significant retail growth.

Mochi-mugi (もち麦) functional food retail — pressed mochi-mugi for cooking with rice has become Japan's leading FFC-registered functional grain category since approximately 2017. Hakubaku, Otsuka Foods, and Yamada Bee Farm are major branded suppliers. Functional claims focus on post-prandial blood glucose moderation and LDL cholesterol reduction supported by β-glucan content.

Mugi-cha (麦茶) — roasted barley tea, one of Japan's largest summer beverage categories. Both leaf-bag retail (Hakubaku, Itoen, Costco PB) and ready-to-drink bottled (Itoen Healthy Mineral Mugi-cha, Coca-Cola Tsumugi) are major SKU formats. Australian-origin 6-row barley dominates the raw material supply.

Mugi-miso (麦味噌) and barley-koji production — barley koji (mugi-koji) is the substrate for mugi-miso (Kyushu and Shikoku regional miso, distinct from rice-koji-based kome-miso). The miso category is significant in retail.

Mugi-shochu production — Oita (notably Iichiko by Sanwa Shurui) and Iki Island (Nagasaki, GI-protected mugi-shochu) are major regional production centers. Mugi-shochu is one of Japan's three main shochu categories alongside imo-shochu (sweet potato) and kome-shochu (rice).

Mugi-kogashi (麦こがし) — roasted barley flour, a traditional confectionery and beverage ingredient (used in dagashi sweets and historical drinks).

For OEM: pressed barley (oshimugi, mochi-mugi) retail packs and rice-blend ingredient supply, mugi-cha tea-bag retail OEM (with origin-disclosure requirements), mochi-mugi FFC functional food retail formulations (β-glucan claims), mugi-miso production input (barley-koji), mugi-shochu production grain supply, and mugi-kogashi confectionery ingredient supply.

Regulatory classification in Japan

Standard agricultural product labeling. Origin region claims (Saga, Fukuoka, Tochigi, Saitama, hadakamugi-specific origins) and import-origin disclosure (Australia, Canada, USA) required.

Mochi-mugi FFC (Foods with Function Claims): registered claims for β-glucan content support post-prandial blood glucose moderation and LDL cholesterol management. Multiple SKUs hold FFC registration.

Variety-type disclosure: hadakamugi vs hulled barley vs mochi-mugi distinction is important for premium positioning.

Allergens: barley contains gluten. While barley is not a JAS-designated allergen, it must not be marketed as gluten-free. Disclosure as a wheat/gluten-related ingredient is recommended.

Mugi-shochu Iki: GI (Geographical Indication) protected designation for Iki Island origin.

Regulatory classification in other markets

EU	Imported as barley. Gluten / cereals containing gluten allergen labeling required. Established import market for barley grain. Japanese-origin specialty barley (mochi-mugi, hadakamugi) positioned as premium functional food category.
USA	Imported under FDA standard food procedures. Wheat / gluten-related allergen labeling required. β-glucan health claims have been authorized by FDA — Japanese mochi-mugi positioning leverages this in the US functional food category.
China	Imported under GACC rules. China is itself a major barley producer (largely for animal feed). Japanese-origin specialty barley (mochi-mugi for functional food, mugi-cha raw material) positioned as premium specialty.
Korea	Imported as Japanese specialty grain. Korea has its own barley culture (보리 / bori) and barley tea (보리차 / borich'a). Japanese-origin mochi-mugi and premium mugi-cha positioned as specialty imports.

Example products

Example finished products will be added after verification of variety (oshimugi / mochi-mugi / hadakamugi / mugi-cha grade), origin (Saga / Fukuoka / Tochigi / Australia / Canada), and target product format (retail rice-blend / mugi-cha bag / FFC functional / miso input / shochu input).

All brand names and product names referenced anywhere on this site are the property of their respective owners. Example entries are provided for informational purposes only and do not imply endorsement.

Related ingredients

Used in similar product applications

Other ingredients commonly used in the same finished-product families.

Sharing similar functions

Ingredients that overlap on functional benefit tags.

From the same origin

Other ingredients that share an origin classification.

FAQ for OEM buyers

Q. What's the difference between mochi-mugi and standard oshimugi for OEM positioning?

Mochi-mugi (もち麦) is a glutinous-starch variety of barley with substantially higher β-glucan (soluble fiber) content (typically 3-7g per 100g) than standard hulled barley (typically 1-2g/100g). The functional food positioning and FFC (Foods with Function Claims) registration potential are the key differentiators. Standard oshimugi (押麦) is the traditional pressed barley flake used for mugi-meshi (barley rice blend) — it provides good fiber content and is positioned for traditional health/diet retail at moderate pricing. Mochi-mugi commands a 1.5-2× premium and is the FFC-registered functional category — multiple Japanese branded products (Hakubaku, Otsuka Foods, etc.) hold FFC registration for post-prandial blood glucose moderation and LDL cholesterol management claims based on β-glucan content. For OEM positioning: oshimugi is for traditional health-positioned mugi-meshi retail at value pricing; mochi-mugi is for FFC functional food positioning at premium pricing, with regulatory pathway clearly established.

Sources · Last reviewed: 2026-04-28

Consumer Affairs Agency FFC database
MEXT Standard Tables of Food Composition β-glucan data

Q. Where does mugi-cha raw material barley come from, and what should OEM consider for origin positioning?

The Japanese mugi-cha raw material market is dominated by Australian-origin 6-row hulled barley (rokujou-mugi), which represents the majority of volume due to consistent quality, large-scale supply, and competitive pricing. Domestic Japan-grown 6-row barley accounts for a minority share, primarily from Saga, Fukuoka, and Tochigi prefectures, and is positioned at a premium for retail SKUs that emphasize domestic origin (国産). Some premium SKUs use specific Japanese cultivars (e.g., 'Nishino-hoshi' from Fukuoka) for differentiated retail positioning. For OEM mugi-cha production: Australian-origin is the standard for value and mid-tier retail; domestic Japanese origin (with prefecture-level documentation) is required for premium retail and gift positioning. The roasting profile (light, standard, deep-roasted, kabusecha-style) is also a major OEM differentiator. Tea-bag format (round, square, triangular) and packaging (cold-brew vs hot-brew positioning) are downstream OEM choices. The Itoen 'Healthy Mineral Mugi-cha' is the volume RTD leader and uses a blend of multiple-origin barley.