Food · Fermented foods

Umi-budō (Sea Grapes / Green Caviar)

うみぶどう (Umi-budō)

Also known as: Umi-budō, Sea grapes, Green caviar, Caulerpa lentillifera, 海ぶどう

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At a glance

CategoryFood
Japanese labeling nameうみぶどう
Common Japanese notationsうみぶどう, 海ぶどう, ウミブドウ
OriginCaulerpa lentillifera; cultivated in Okinawan waters; principal modern production region Okinawa; the spherical bubble-like structures resemble small grapes (giving the name)
Typical functionsPremium foodservice and Okinawan tourism specialty, Sashimi and ponzu accompaniment — distinctive popping texture, Premium gift retail
Regulatory status in JapanStandard agricultural product labeling. Okinawan production. Note: umi-budō should be stored at room temperature in salt water or special preservation — refrigeration causes deterioration. Not a designated allergen.

Umi-budō (うみぶどう / 海ぶどう) — sea grapes / green caviar (Caulerpa lentillifera) — is an Okinawan specialty seaweed with distinctive bubble-cluster structure that 'pops' when eaten. The OEM positioning is premium Okinawan foodservice and tourism specialty: as a sashimi and ponzu accompaniment with unique texture experience, and as Okinawan premium gift retail. Critical storage note: must be stored at room temperature, not refrigerated.

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.

  • Fresh umi-budō (in special preservation packaging — should not be refrigerated)
  • Premium gift retail (Okinawan)

What it is

Caulerpa lentillifera, Okinawan cultivated seaweed with spherical bubble structures.

Typical uses in Japanese products

Premium foodservice — sashimi and ponzu accompaniment.

Okinawan tourism cuisine specialty.

Premium gift retail.

For OEM: Okinawan tourism gift retail OEM, premium foodservice supply.

Regulatory classification in Japan

Standard food labeling. Okinawan origin. Special storage requirements (room temperature).

Not a designated allergen.

Regulatory classification in other markets

EUNiche specialty positioning. Same species also produced in Philippines/Vietnam.
USANiche specialty in Asian cuisine channels.
ChinaNiche specialty positioning.
KoreaNiche specialty positioning.

Example products

Example finished products will be added after verification of Okinawan origin.

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

References

  1. MEXT Standard Tables of Food Composition — うみぶどう

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

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