Japan — nationwide, squid (ika) fisheries throughout Japanese coastal waters
Ika (イカ, squid) is one of Japan's most versatile and heavily consumed seafood ingredients — present across every cooking category from raw sashimi to deep-fried, simmered, grilled, and fermented. Japan processes more squid than almost any other nation, and the distinctions between squid species and their optimal preparations are well-established in Japanese culinary culture. Key species: surumeika (ヤリイカ, common squid, Todarodes pacificus) — the most common, used fresh and dried; yariika (spear squid, Loligo japonica) — more delicate, smaller, preferred for sashimi; mongouika (cuttlefish, Sepia esculenta) — broader mantle, very rich, used for sashimi and simmered applications; hotaruika (firefly squid, Watasenia scintillans) — tiny (5cm), strongly flavoured, eaten whole in vinegared dressing or as boiled pickles in spring. Preparation disciplines: sashimi requires the skin to be peeled in two layers (outer skin and transparent inner membrane); the body must be scored in a fine crosshatch for better sauce adhesion and to prevent curling in heat; the tentacles are treated differently from the body in most applications. Dried squid (surumeika dried) is an ancient preservation product used as a dashi base, as a drinking snack, and as a New Year's decoration.
Fresh squid sashimi: mild, slightly sweet, clean ocean character with a firm-yet-yielding bite. The flesh is almost neutral — the sweetness is subtle and the texture is the primary pleasure. Charcoal-grilled whole squid: the skin chars and adds smokiness while the interior flesh steams in the natural liquid — sweet, smoky, slightly oceanic. Hotaruika: small size concentrates the flavour — more intense, slightly stronger, almost gamey marine character compared to larger species.
{"Fresh squid has firm, clear flesh with a purple or spotted skin — milky-white, soft flesh indicates poor freshness","Skin removal: outer skin peels starting from the tail; the transparent inner skin requires a separate pull","Score the inner surface of the body with a fine crosshatch (2mm spacing) before cooking — this prevents curling and improves texture","Squid body cooks in 30–45 seconds at high heat; overcooked squid becomes rubbery within 60 seconds additional cooking","Hotaruika: must be fully frozen before consumption if eaten raw due to parasitic nematode risk; boil briefly for salads","Ika no shiokara: fermented squid in its own gut enzymes — a traditional Japanese delicacy; the fermentation requires precise salt ratios"}
{"Ika sashimi scoring technique: score the inner face of the peeled mantle in a 2mm crosshatch, then score diagonally — when heated briefly, the cuts cause the squid to curl into attractive forms (hana-ika, flower squid)","Ika no sumiyaki (charcoal-grilled whole squid): grill the whole unpeeled squid until the skin chars and blisters, then peel at table — the inner flesh is protected by the skin and remains perfectly tender","Hotaruika boiled with karashi sumiso (yellow mustard-miso dressing) is the definitive spring coastal dish — available March–May in Toyama Prefecture where the firefly squid bioluminescence attracts them to the surface","Ika no karaage: score the body, marinate briefly in soy, sake, and ginger, coat in katakuriko (potato starch), fry at 180°C — the starch creates a crispier crust than flour","Ika no shiokara (salted fermented squid gut) is an acquired taste — the gut enzymes create an intensely flavoured, slightly pungent product that is consumed with hot sake","Dried surume: the dried squid is torn into strips along the grain and eaten with mayonnaise or soy as an izakaya snack — warming it briefly intensifies the oceanic aroma"}
{"Not removing the inner transparent skin — this membrane contracts dramatically during cooking and creates a tough, rubbery outer layer","Overcooking squid — the transition from tender to rubbery happens in under 30 seconds; remove from heat the instant it turns opaque","Not crosshatch-scoring — squid body without scoring curls into a tube during cooking, creating uneven heat distribution and poor presentation"}
Tsuji: Japanese Cooking — A Simple Art