大トロ · オオトロ · otoro
Otoro
Otoro is the fattiest cut of the tuna belly — densely marbled, pale pink, and rich enough to dissolve on the tongue. The prized luxury slice of edomae sushi.
- Also known as
- fatty tuna, toro
- Species
- Thunnus orientalis (Bluefin tuna (fattiest belly cut))
- Category
- Red-flesh fish (akami)
- Texture
- melting, buttery — intensely rich, marbled, melts on contact
- Peak season
- Nov, Dec, Jan, Feb
- Sustainability
- red — Almost always bluefin, which is heavily overfished.
- Mercury
- Not in the FDA consumer table
- Pregnancy
- Eat in moderation
- Price tier
- $$$$
The luxury cut
Otoro is the fattiest cut of the tuna belly — densely marbled, pale pink, and so rich it dissolves on contact with a warm tongue. It is the single most prized (and priciest) slice in edomae sushi.
How to eat it
Otoro needs almost nothing: a whisper of nikiri, body-temperature rice, and immediate eating before the fat warms past its prime. Lightly seared (aburi) otoro is a popular modern treatment that renders the fat fragrant.
Mercury and ethics
Otoro actually carries less mercury than lean akami — mercury concentrates in muscle, not fat. But it almost always comes from bluefin, which is heavily overfished and rated avoid by Seafood Watch. Enjoy it knowingly. Compare all three tuna cuts.
Related neta
Chutoro
Chutoro is the medium-fatty cut between lean akami and rich otoro — marbled like good beef but balanced, and for many the best-value sweet spot of the tuna.
赤身 akamiAkami
Akami is the lean, deep-red back muscle of tuna — the most traditional cut, all clean iron and umami, and the one with the most mercury per bite.