Food · Fermented foods
Hoshi-Hijiki (Dried Hijiki Seaweed)
ほしひじき (Hoshi-hijiki)
Also known as: Hoshi-hijiki, Dried hijiki, Sargassum fusiforme, ほしひじき, 干しひじき, Hijiki, Naga-hijiki, Me-hijiki
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| Category | Food |
|---|---|
| Japanese labeling name | ほしひじき |
| Common Japanese notations | ほしひじき, 干しひじき, ヒジキ, 羊栖菜, 鹿尾菜, 長ひじき, 芽ひじき |
| Origin | Sargassum fusiforme; principal modern domestic harvest regions Mie Ise, Nagasaki, Chiba, Oita, Wakayama; significant Korean and Chinese imports for cost-positioned applications; processed by long boiling (hijiki-noto / iso-hijiki) to remove arsenic and reduce bitterness |
| Typical functions | Hijiki-no-nimono (sweet-savory simmered hijiki) — defining household and bento dish, Hijiki-meshi (hijiki rice mix), Calcium and iron functional positioning (one of Japan's most calcium-dense and iron-rich foods) |
| Regulatory status in Japan | Standard agricultural product labeling. Domestic vs Korean/Chinese-imported origin disclosure essential. **Inorganic arsenic content note**: hijiki contains higher inorganic arsenic than other seaweeds — proper boiling and water-soaking processing reduces levels. Some non-Japanese governments (UK FSA, others) advise against regular hijiki consumption; Japanese authorities consider properly-processed hijiki safe for normal consumption. Not a designated allergen. |
Hoshi-hijiki (ほしひじき / 干しひじき) — dried Sargassum fusiforme — is one of Japan's defining traditional seaweeds with substantial OEM positions: as the central ingredient of hijiki-no-nimono (sweet-savory simmered hijiki, a household and bento dish staple), as hijiki-meshi (rice mix), and as functional positioning food for calcium and iron content (one of Japan's most calcium- and iron-dense foods). Mie Ise, Nagasaki, Chiba, Oita, Wakayama lead domestic production. **Important: inorganic arsenic content** — proper Japanese-style processing (long boiling with water changes) reduces levels to acceptable; some non-Japanese governments advise caution about hijiki consumption.
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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.
- Dried naga-hijiki (long-stem) retail
- Dried me-hijiki (bud) retail
- Pre-cooked hijiki retail (volume convenience format)
- Hijiki-meshi mix retail
Ingredient profile
Sargassum fusiforme brown seaweed. Dried product after long boiling and processing.
Two main forms: naga-hijiki (long-stem) and me-hijiki (bud — finer texture).
OEM applications
Hijiki-no-nimono — defining household and bento dish.
Hijiki-meshi rice mix.
Calcium/iron functional positioning.
For OEM: dried hijiki retail (naga and me forms), pre-cooked retail, hijiki-meshi mix.
Regulatory classification in Japan
Standard food labeling. Domestic vs Korean/Chinese imported origin.
Inorganic arsenic awareness — proper processing essential.
Not a designated allergen.
Regulatory classification in other markets
| EU | Imported as hijiki. UK and some EU regulators have advised against regular consumption due to inorganic arsenic. |
|---|---|
| USA | Imported as hijiki. FDA awareness of arsenic content; established Japanese-cuisine retail category. |
| China | China is major hijiki producer. |
| Korea | Korea has substantial tot (톳) hijiki tradition. |
Market reference formulations
Example finished products will be added after verification of origin and processing.
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.
Seasonality & supply calendar
- Harvest months
- Source hijiki harvested March – May; drying / processing follows immediately
- Peak supply
- May – July (newly-dried 新ひじき)
- Off-season
- Year-round via dried storage
Source: 農林水産省 漁業センサス. Mie・Chiba・Nagasaki lead domestic production; Korea / China import covers most retail volume.
Storage requirements
How the receiving OEM facility needs to handle inbound raw material.
- Temperature
- Room temperature sealed
- Conditions
- Dry, sealed; arsenic content requires consumer-side rinsing per 厚生労働省 guidance
- Shelf life
- 24 months sealed
Supply concentration
Where this ingredient comes from — useful for single-source-risk planning.
- Primary regions
- Mie, Chiba, Nagasaki (domestic); Korea / China dominate retail volume
- Import dependence
- ~90% imported (Korea, China)
農林水産省 漁業センサス
Certifications commonly available
Certification schemes commonly obtainable for this raw material. Always confirm the specific supplier's current certificate before contracting.
| Scheme | Availability | |
|---|---|---|
| Halal | On-request | |
| Kosher | On-request | |
| Vegan | Inherent | |
| 厚生労働省 arsenic-management compliance | Required | Inorganic arsenic content requires consumer rinsing per 厚生労働省 guidance |
Documented adulteration risks
Known fraud / adulteration patterns reported by regulators or industry bodies. Specify CoA params and screening tests on every PO.
- Korean / Chinese hijiki sold as Japanese-origin
Detection: Country-of-origin per 食品表示法; arsenic profiling correlates with origin
農林水産省 / 厚生労働省
Alternative ingredients
Related ingredients commonly evaluated as substitutes.
Quick answers
- What is Hoshi-Hijiki (Dried Hijiki Seaweed)?
- Hoshi-hijiki (ほしひじき / 干しひじき) — dried Sargassum fusiforme — is one of Japan's defining traditional seaweeds with substantial OEM positions: as the central ingredient of hijiki-no-nimono (sweet-savory simmered hijiki, a household and bento dish staple), as hijiki-meshi (rice mix), and as functional positioning food for calcium and iron content (one of Japan's most calcium- and iron-dense foods). Mie Ise, Nagasaki, Chiba, Oita, Wakayama lead domestic production. **Important: inorganic arsenic content** — proper Japanese-style processing (long boiling with water changes) reduces levels to acceptable; some non-Japanese governments advise caution about hijiki consumption.
- What is the regulatory status of Hoshi-Hijiki (Dried Hijiki Seaweed) in Japan?
- Standard agricultural product labeling. Domestic vs Korean/Chinese-imported origin disclosure essential. **Inorganic arsenic content note**: hijiki contains higher inorganic arsenic than other seaweeds — proper boiling and water-soaking processing reduces levels. Some non-Japanese governments (UK FSA, others) advise against regular hijiki consumption; Japanese authorities consider properly-processed hijiki safe for normal consumption. Not a designated allergen.
- What products typically use Hoshi-Hijiki (Dried Hijiki Seaweed)?
- Dried naga-hijiki (long-stem) retail / Dried me-hijiki (bud) retail / Pre-cooked hijiki retail (volume convenience format) / Hijiki-meshi mix retail
- Where does Hoshi-Hijiki (Dried Hijiki Seaweed) come from?
- Sargassum fusiforme; principal modern domestic harvest regions Mie Ise, Nagasaki, Chiba, Oita, Wakayama; significant Korean and Chinese imports for cost-positioned applications; processed by long boiling (hijiki-noto / iso-hijiki) to remove arsenic and reduce bitterness
- What is the INCI / JSCI labeling name for Hoshi-Hijiki (Dried Hijiki Seaweed)?
- JSCI: ほしひじき
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Sharing similar functions
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From the same origin
Other ingredients that share an origin classification.
Manufacturers mentioning this ingredient
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References
- 文部科学省 (Ministry of Education, Culture, Sports, Science and Technology) Standard Tables of Food Composition — ほしひじき 各形態
Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.