Food · Fermented foods

Mentaiko (Spicy Cod Roe)

明太子 (Mentaiko)

Also known as: Mentaiko, Spicy cod roe, Karashi mentaiko, 明太子, 辛子明太子, Hakata mentaiko

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At a glance

CategoryFood
Japanese labeling name明太子
Common Japanese notations明太子, 辛子明太子, Mentaiko
OriginChili-cured Alaska pollock roe (suketo-dara — see suketo-dara entry); principal modern production region Fukuoka Hakata (heritage area, with Fukuya as the originator since 1949); principal Hakata producers Fukuya, Kanefuku, Yamaya, Hakatara
Typical functionsPremium gift retail — Hakata Mentaiko is iconic regional gift category, Mentaiko-pasta foodservice signature (fusion-Japanese pasta), Mentaiko onigiri filling and rice topping, Mentai-jaga (mentaiko potato dish)
Regulatory status in JapanStandard food labeling. Hakata Mentaiko regional brand. **Fish allergen (cod roe) recommended disclosure.** Coloring and additives disclosure (some products use food coloring).

Mentaiko (明太子 / 辛子明太子) is chili-cured Alaska pollock roe — defining Hakata (Fukuoka) regional gift specialty. Fukuya invented modern mentaiko in 1949. Major producers Fukuya, Kanefuku, Yamaya. Iconic mentaiko-pasta fusion application.

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Classification

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

Common OEM product categories

Finished-product categories where Japanese OEM manufacturers commonly formulate with this ingredient.

  • Premium Hakata Mentaiko gift retail (Fukuya, Kanefuku flagship)
  • Foodservice mentaiko ingredient
  • Mentaiko sauce/paste retail (Yamaya Mentaiko-no-Tare)

Ingredient profile

Chili-cured Alaska pollock (suketo-dara) roe.

OEM applications

Premium Hakata gift retail.

Mentaiko-pasta fusion foodservice.

Onigiri filling and rice topping.

Mentai-jaga.

For OEM: Hakata Mentaiko production OEM, premium gift retail.

Regulatory classification in Japan

Standard food labeling. Hakata regional brand. Fish allergen recommended. Coloring disclosure.

Regulatory classification in other markets

EUNiche specialty in Japanese-cuisine channels.
USAEstablished US specialty Japanese-cuisine retail.
ChinaPremium specialty positioning.
KoreaKorea has its own myeongnan (명란) tradition (slightly different style).

Market reference formulations

Example finished products will be added after verification of Hakata producer.

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 pollack roe harvested October – February (Bering Sea / North Pacific)
Peak supply
November – January
Off-season
Frozen-imported roe is processed year-round into mentaiko / tarako

Source: 水産庁 import statistics. Fukuoka prefecture is the historic processing center; raw roe is almost entirely imported (US / Russia).

Storage requirements

How the receiving OEM facility needs to handle inbound raw material.

Temperature
Chilled 0–4°C; frozen −18°C for stock
Conditions
Vacuum-packed; light-protected (avoid oxidation of red color)
Shelf life
Chilled 14 days; frozen 6 months

Supply concentration

Where this ingredient comes from — useful for single-source-risk planning.

Primary regions
Processing: Fukuoka (Hakata), Kitakyushu
Import dependence
Source pollack roe ~99% imported (US, Russia)

全国辛子明太子工業協同組合 / 財務省貿易統計

Certifications commonly available

Certification schemes commonly obtainable for this raw material. Always confirm the specific supplier's current certificate before contracting.

SchemeAvailability
HalalOn-requestPlain salt-cured 真子 lines available Halal-certified; spicy mentaiko uses additives that may not be Halal
KosherOn-request

Documented adulteration risks

Known fraud / adulteration patterns reported by regulators or industry bodies. Specify CoA params and screening tests on every PO.

  • Imported pollack roe processed in Japan sold as 'Japanese mentaiko' (origin of fish vs origin of processing)

Detection: Documented sourcing chain; processing vs. catch country distinction in labeling

全国辛子明太子工業協同組合 / 消費者庁

Alternative ingredients

Related ingredients commonly evaluated as substitutes.

Quick answers

What is Mentaiko (Spicy Cod Roe)?
Mentaiko (明太子 / 辛子明太子) is chili-cured Alaska pollock roe — defining Hakata (Fukuoka) regional gift specialty. Fukuya invented modern mentaiko in 1949. Major producers Fukuya, Kanefuku, Yamaya. Iconic mentaiko-pasta fusion application.
What is the regulatory status of Mentaiko (Spicy Cod Roe) in Japan?
Standard food labeling. Hakata Mentaiko regional brand. **Fish allergen (cod roe) recommended disclosure.** Coloring and additives disclosure (some products use food coloring).
What products typically use Mentaiko (Spicy Cod Roe)?
Premium Hakata Mentaiko gift retail (Fukuya, Kanefuku flagship) / Foodservice mentaiko ingredient / Mentaiko sauce/paste retail (Yamaya Mentaiko-no-Tare)
Where does Mentaiko (Spicy Cod Roe) come from?
Chili-cured Alaska pollock roe (suketo-dara — see suketo-dara entry); principal modern production region Fukuoka Hakata (heritage area, with Fukuya as the originator since 1949); principal Hakata producers Fukuya, Kanefuku, Yamaya, Hakatara
What is the INCI / JSCI labeling name for Mentaiko (Spicy Cod Roe)?
JSCI: 明太子

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Official regulatory databases

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References

  1. Fukuya Mentaiko heritage documentation

Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.

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