Wild
Iwagaki (Rock Oyster) turns the traditional oyster season on its head — where common oysters (Magaki) are enjoyed in the cold months, Iwagaki is the summer oyster, harvested from June through August when its quality peaks. This inversion, combined with Iwagaki's extraordinary size (often 3-4 times larger than Magaki), makes it a distinctive Japanese summer luxury.
The size difference is remarkable — a single Iwagaki can weigh 300-500g and provide enough meat for a small meal by itself. The flesh is thick, plump, and creamy, with a rich, complex ocean flavor that is more intense than the delicate Magaki. The shells are dramatically rough and rocky, giving the oyster its Japanese name (iwa = rock).
Advance Intertrade sources Iwagaki from the Sea of Japan coast — Ishikawa, Akita, and Yamagata are famous producing regions. Live shipping preserves the pristine quality that makes Iwagaki a summer luxury.
The definitive Iwagaki experience — served on the half shell with lemon or ponzu, the size and richness are extraordinary.
Grilled in the half shell with butter or miso — the size makes it a substantial main course.
Panko-crusted and deep-fried — the size ensures a hot, creamy interior with a crispy exterior.
Sliced onto sushi rice or served as sashimi — a premium seasonal item at high-end sushi bars.
| Size | Grade | Common Use |
|---|---|---|
| 200–300g | Standard | Sushi portions, general use |
| 300–400g | Medium | Nama-gaki, sashimi — most popular |
| 400–500g | Large | Premium presentations, grilled |
| 500g+ | Jumbo | Show-stopper single-oyster main courses |
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