Seafood ── Shellfish and cephalopods
Mirugai
a giant clam whose long siphon is the part actually eaten
Formally called mirukui, this large clam is eaten for its thick siphon, which extends far beyond the shell, prized raw for a crisp bite and mild sweetness; briefly scalding the surface is said to add a toasty note.
- Shellfish
Lineage
What it's made of
Formally called mirukui, this large clam is eaten for its thick siphon, which stretches far beyond the shell and is served raw as sashimi or sushi, prized for a crisp bite and a mild sweetness. Briefly scalding the surface turns the skin's texture toasty and is said to bring out more sweetness than eating it raw — an unusual clam where the siphon, not the body, takes center stage, with the body itself usually simmered instead.
How it's made
It burrows deep into sandy mud, leaving only the siphon poking above the seabed to breathe, and is dug up with dredge nets. Once landed, the shell is cracked open and the siphon separated from the body; scalding and peeling the siphon's skin is said to remove its distinctive off-flavor and smooth out the texture. The trimmed edge of that peeled skin is sometimes chopped and served as a garnish of its own, so how carefully it is prepped shows directly in the result.
Why it took this shape
Shallow inner waters with a wide tidal range, like the head of Tokyo Bay, are said to offer the sandy-mud seabed this deep-burrowing clam needs. Its long siphon, which shields the body deep in the sand, is thought to have developed to suit these calm, wave-sheltered bay environments, since burrowing deeper is also said to keep it safer from predators. The longer the siphon, the better the clam is generally reckoned to be.
Before You Go
- How to shop at a supermarketHow to choose prepared foods, sashimi, and packaged sushi, when discount stickers tend to appear, region-only specialties, buying by weight, the checkout and bagging flow, and sampling etiquette at a local supermarket.
- Roadside stations, direct-sale stands, and marketsHow to enjoy buying food near where it's produced, visiting and shopping at morning markets and fish markets, what to expect at farm stands, and finding local food at roadside stations (michi-no-eki).
- Foods to look for in winterA guide to foods often seen in Japan around winter — nabe hot pot, fugu, oysters, crab, year-end soba, and osechi — with rough pointers for finding them.
Dishes in the same style
- AkagaiA bivalve whose blood contains hemoglobin, tinting its flesh red. A traditional Edo-style sushi item, with a crisp bite and an iron-tinged flavor; even its frilled mantle edge is eaten, often vinegared.
- AsariA small bivalve familiar from beach clam-digging outings. Once purged of sand, it releases a strong broth in sake-steaming or miso soup, its flesh springy, best filled out just before spring spawning.
Ingredients and dishes from this land
Known source
- Known source: Chiba, Futtsu
The shallow inner waters of Tokyo Bay are a notable fishing ground.
Contrast
- AkagaiA bivalve whose blood contains hemoglobin, tinting its flesh red. A traditional Edo-style sushi item, with a crisp bite and an iron-tinged flavor; even its frilled mantle edge is eaten, often vinegared.
- BakagaiA clam usually sold under its market name, aoyagi. Its orange foot is shucked and used for sushi nigiri or gunkan rolls, tender with a mild sweetness; its small adductor muscles are prized separately for fritters.