Food · Fermented foods

Hokkigai (Sakhalin Surf Clam)

ほっきがい (Hokkigai)

Also known as: Hokkigai, Hokki, Sakhalin surf clam, Ubagai, Pseudocardium sachalinense, 北寄貝, 姥貝

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At a glance

CategoryFood
Japanese labeling nameほっきがい (うばがい)
Common Japanese notationsほっきがい, 北寄貝, 姥貝, ホッキ, ウバガイ
OriginSakhalin surf clam (Pseudocardium sachalinense); cold-water species; principal domestic regions Hokkaido (Tomakomai is officially-designated 'city shellfish' / 市の貝), Aomori (Mutsu Bay), Fukushima (Soma) historically; **Tomakomai is the volume center**; characteristic flame-colored siphon when blanched (turns from grey to vivid pink) is iconic sushi visual
Typical functionsSushi defining premium nigiri — vivid pink blanched siphon iconic, Hokki-meshi Tomakomai-specialty rice dish, Sashimi premium, Hokki-curry (regional specialty curry), Foodservice Hokkaido-cuisine signature
Regulatory status in JapanStandard food labeling. **Origin disclosure required.** **Mollusk JAS-recommended-disclosure allergen.** Tomakomai-designated specialty.

Hokkigai (ほっきがい / 北寄貝 / 姥貝) — Sakhalin surf clam (Pseudocardium sachalinense) — is Tomakomai's officially-designated 'city shellfish'. Sushi-defining premium nigiri with iconic vivid-pink blanched siphon. Hokkaido volume; Aomori, Fukushima historically.

Classification

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

Used in (typical product categories)

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

  • Live/fresh hokki Hokkaido premium retail
  • Frozen blanched hokki B2B (sushi-channel staple)
  • Hokki-meshi retail finished product

What it is

Pseudocardium sachalinense Sakhalin surf clam (cold-water).

Typical uses in Japanese products

Sushi premium nigiri (iconic pink siphon).

Hokki-meshi Tomakomai rice dish.

Sashimi premium.

Hokki-curry regional specialty.

For OEM: live Hokkaido premium retail, frozen blanched B2B sushi, retail prepared.

Regulatory classification in Japan

Standard food labeling. Origin disclosure. **Mollusk JAS-recommended-disclosure allergen.**

Regulatory classification in other markets

EU**Mollusks EU-mandatory allergen.** Niche premium specialty.
USAMollusk allergen disclosure. Sushi-channel premium specialty.
ChinaNiche premium sushi-channel import.
KoreaNiche premium import.

Example products

Example finished products will be added after verification.

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Related ingredients

References

  1. MEXT Standard Tables of Food Composition — ほっきがい (うばがい)

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

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