Engawa and Hirame Flatfish Sushi Explained

Hirame is flounder (Japanese halibut) — a clean, delicate white fish. Engawa is the fin muscle along its edge — chewier, richer and fattier. One fish, two very different pieces.

At a glance. Hirame (平目): flounder, mild, clean, slightly firm — best in winter. Engawa (縁側): the fin muscle, rich, fatty, crunchy-chewy. Often: hirame with kombu cure (kombujime); engawa seared.

Hirame

Hirame is one of the classic white fish that opens an omakase, because its mild flavour prepares the palate. Winter hirame, called kan-birame, is fattiest. Chefs often cure it between sheets of kombu (kombujime) for extra umami, and serve it with salt and citrus rather than soy.

Engawa

Engawa is the thin band of muscle that moves the fins. Each fish yields only a little, which makes it prized. It has a rich, fatty flavour and crunchy-chewy texture, and is often lightly seared (aburi). Many chains serve engawa from other flatfish such as halibut or flounder varieties.

Where to try it in Hong Kong

Itacho's Set B and Set C include Japanese flounder. Omakase counters serve hirame early in the sequence. See Itacho menu.

Order engawa seared. A quick torch melts the fat and brings out sweetness.

How to eat: hirame is best with salt, citrus or momiji-oroshi (grated radish with chilli); engawa with a light brush of soy.

Engawa on belt menus may come from different flatfish species. Ask if origin matters to you.

Common questions

What is engawa?

The fin muscle of flatfish such as flounder or halibut.

When is hirame best?

Winter.

Where else can I look?

See our sushi fish guide.

Compiled by our editorial team from Japanese seafood and sushi references, chain and restaurant menus, and Hong Kong food safety guidance, retrieved September 2026. Seasons vary by region and year. General information only, not medical or dietary advice.