Food · Fermented foods

Katakuchi Iwashi (Japanese Anchovy)

かたくちいわし (Katakuchi Iwashi)

Also known as: Katakuchi iwashi, Japanese anchovy, Engraulis japonicus, 片口鰯, Niboshi (dried), Tatami-iwashi (sheet-dried)

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At a glance

CategoryFood
Japanese labeling nameかたくちいわし
Common Japanese notationsかたくちいわし, 片口鰯, カタクチイワシ, 煮干し
OriginJapanese anchovy (Engraulis japonicus); the principal small pelagic fish for shirasu (whitebait) and niboshi (dried baby anchovy) production; harvested in Japanese coastal waters with major landings at Shizuoka, Kanagawa, Ehime, Hyogo
Typical functionsNiboshi production — major dashi ingredient (see niboshi-dashi entry), Shirasu production — see shirasu entry, Tatami-iwashi (sheet-dried baby anchovy), Anchovy fillet (Western-style processed)
Regulatory status in JapanStandard food labeling. Fish allergen disclosure (mandatory if processed product). Distinct shirasu and niboshi entries already exist.

Katakuchi-iwashi (かたくちいわし / 片口鰯) — Japanese anchovy (Engraulis japonicus) — is the principal Japanese small pelagic fish, foundation of niboshi (dried baby anchovy) and shirasu (whitebait) production. See niboshi-dashi and shirasu entries for those specific products.

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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.

  • Fresh whole katakuchi-iwashi (foodservice)
  • Niboshi retail and ingredient
  • Tatami-iwashi traditional retail

Ingredient profile

Engraulis japonicus Japanese anchovy.

OEM applications

Niboshi production (see niboshi-dashi).

Shirasu production (see shirasu).

Tatami-iwashi traditional sheet-dried.

Anchovy fillet processed.

For OEM: niboshi production OEM, tatami-iwashi retail.

Regulatory classification in Japan

Standard food labeling. Fish allergen mandatory for processed products.

Regulatory classification in other markets

EUNiche specialty in Japanese-cuisine and Mediterranean (anchovy fillet) channels.
USANiche specialty positioning.
ChinaNiche specialty positioning.
KoreaKorea has substantial myeolchi (멸치) anchovy tradition.

Market reference formulations

Example finished products will be added after verification.

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Seasonality & supply calendar

Harvest months
April – November
Peak supply
June – September
Off-season
December – March

Source: 水産庁 statistics. The main raw material for niboshi (dried baby anchovies); Hyogo・Hiroshima・Nagasaki lead landings.

Storage requirements

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

Temperature
Chilled 0°C for fresh; frozen for processing; dried niboshi at room temperature sealed
Conditions
Highly perishable raw; salted / sun-dried niboshi is the dominant commercial form
Shelf life
Raw 2–3 days iced; niboshi 12 months sealed

Supply concentration

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

Primary regions
Hyogo, Hiroshima, Kagawa (Setouchi), Nagasaki
Import dependence
Niboshi: 70%+ domestic; raw fish: domestic

全国煮干水産加工業協同組合連合会

Certifications commonly available

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

SchemeAvailability
HalalInherent
KosherInherent

Documented adulteration risks

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

  • Imported anchovies (Peruvian / Korean) substituted for domestic katakuchi-iwashi in niboshi production

Detection: Country-of-origin documentation; DNA species ID

全国煮干水産加工業協同組合連合会

Alternative ingredients

Related ingredients commonly evaluated as substitutes.

Quick answers

What is Katakuchi Iwashi (Japanese Anchovy)?
Katakuchi-iwashi (かたくちいわし / 片口鰯) — Japanese anchovy (Engraulis japonicus) — is the principal Japanese small pelagic fish, foundation of niboshi (dried baby anchovy) and shirasu (whitebait) production. See niboshi-dashi and shirasu entries for those specific products.
What is the regulatory status of Katakuchi Iwashi (Japanese Anchovy) in Japan?
Standard food labeling. Fish allergen disclosure (mandatory if processed product). Distinct shirasu and niboshi entries already exist.
What products typically use Katakuchi Iwashi (Japanese Anchovy)?
Fresh whole katakuchi-iwashi (foodservice) / Niboshi retail and ingredient / Tatami-iwashi traditional retail
Where does Katakuchi Iwashi (Japanese Anchovy) come from?
Japanese anchovy (Engraulis japonicus); the principal small pelagic fish for shirasu (whitebait) and niboshi (dried baby anchovy) production; harvested in Japanese coastal waters with major landings at Shizuoka, Kanagawa, Ehime, Hyogo
What is the INCI / JSCI labeling name for Katakuchi Iwashi (Japanese Anchovy)?
JSCI: かたくちいわし

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Official regulatory databases

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References

  1. 文部科学省 (Ministry of Education, Culture, Sports, Science and Technology) Standard Tables of Food Composition — かたくちいわし 各形態

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

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