Japan (national; specific regional styles in Kyoto, Okinawa, and artisan producers)
Japanese tofu culture encompasses a far more nuanced spectrum of textures, coagulants, and styles than the firm/soft binary most Western markets offer. The two foundational categories are momen-dofu (cotton tofu — pressed, firm, textured with the impression of the cotton cloth used in pressing) and kinugoshi-dofu (silk-strained tofu — unpressed, silky, trembling, with the clean surface of custard). Beyond these, the spectrum includes: Okinawan jimami tofu (made from ground peanuts rather than soy, described separately elsewhere); yudofu (tofu served in kombu dashi, demonstrating the ingredient's character with absolute directness); frozen tofu (kori-dofu or koya-dofu — a sponge-like dried frozen tofu with entirely different texture properties that absorbs broth readily); abura-age (discussed separately); ganmodoki (fried tofu fritter incorporating vegetables and seaweed); and atsuage (thick deep-fried tofu). The coagulation science is central: traditional nigari (bitter — magnesium chloride derived from seawater) produces a slightly bitter, clean-flavoured tofu with a delicate texture; gypsum (calcium sulfate, sulphate) produces a softer, slightly sweeter, more stable tofu; glucono delta-lactone (GDL) produces a firm-setting tofu with clean flavour used in silken applications. Artisanal tofu producers use hand-operated wooden presses, specific water sources (soft water produces smoother tofu), and manual nigari addition timing — each variable affecting the final texture and flavour of the product.
Premium fresh tofu: clean, mildly sweet soy-bean character; nigari versions have a slight saline note; kinugoshi is more delicate and neutral than momen; koya-dofu has an earthy, concentrated character from the freeze-dry process; fresh tofu's flavour is best revealed through the simplest preparations — good tofu needs almost no help
{"Coagulant choice affects flavour: nigari produces slightly saline, complex flavour; gypsum produces sweeter, more neutral character; artisanal tofu labels indicate coagulant — for direct consumption (yudofu), nigari-coagulated tofu is generally preferred","Momen texture management: cotton tofu must be pressed before use in applications requiring low moisture (stir-fry, grilling, stuffing) — wrap in clean cloth, place under a light weight for 15–30 minutes to remove excess moisture","Kinugoshi handling: silken tofu is extraordinarily fragile — use a flat palette knife or spatula to transfer; any pressure concentrates at corners and causes immediate breaking","Koya-dofu rehydration: dried frozen tofu must be rehydrated in warm water (65°C), then squeezed repeatedly to remove the starchy water before adding to dishes — incomplete squeezing produces a sour, starchy flavour","Water quality impact: Japanese tofu producers seek soft water with low mineral content — the absence of competing minerals allows the soy protein to coagulate cleanly; hard water interferes with the coagulation process"}
{"Yudofu the definitive quality test: simmer a block of premium nigari-coagulated tofu in kombu dashi until just heated through (do not boil), serve with dipping soy and fresh grated ginger — everything in the preparation hinges on tofu quality; inferior tofu has no quality to reveal","Ganmodoki at home: combine firm tofu (well-pressed and crumbled) with finely diced carrot, hijiki seaweed, gingko nuts, and a small amount of yamaimo for binding; shape into 2cm patties and deep-fry at 170°C until golden — simmered in dashi after frying, these absorb extraordinary flavour","Koya-dofu rehydrated and simmered in dashi-soy has a uniquely sponge-like texture that carries more cooking liquid per gram than any other tofu variety — exceptional for nimono applications where ingredient-as-flavour-vehicle is the goal","For a contemporary tofu dessert application: blend soft silken tofu with matcha, sugar, and a small amount of cream; pass through a fine sieve; set with very minimal agar (0.3%) in individual moulds — produces a deeply verdant, silky dessert with restrained sweetness"}
{"Using silken tofu for stir-fry or any high-heat application — kinugoshi's fragility and high water content make it unsuitable for any application requiring structural integrity; momen is the correct choice","Skipping the momen pressing step for grilled or fried applications — unpressed cotton tofu releases water under heat, causing splattering and preventing surface browning","Storing unused tofu in tap water — use filtered water, changed daily, to store cut tofu; chlorinated tap water imparts flavour","Heating silken tofu aggressively — agedashi tofu and hot tofu preparations with silken tofu must use gentle heat only; too hot and the protein sets rapidly and becomes rubbery"}
Washoku — Elizabeth Andoh; The Japanese Kitchen — Hiroko Shimbo