Japan-wide — regional noodle varieties from Hokkaido to Okinawa
Japan's noodle taxonomy covers at least 10 distinct varieties, each requiring different preparation and carrying specific cultural associations. Complete glossary: Soba (buckwheat-blend, grey-brown, nutty, served hot or cold); Udon (thick white wheat, soft and yielding, served hot in broth or cold with dipping sauce); Ramen (thin wavy alkaline wheat noodle with characteristic chew and yellow colour from kansui); Somen (ultra-thin white wheat, summer-only, served cold); Hiyamugi (thin white wheat, thicker than somen, spring/summer); Kishimen (flat wide wheat noodle from Nagoya, similar to fettuccine in appearance); Yakisoba (Chinese-style thin wheat noodle used for stir-frying, not soba despite the name); Saifun (cellophane/glass noodles from mung bean starch, transparent, used in nabe); Shirataki (konnyaku thread noodles, white or transparent, zero-calorie, used in sukiyaki); Harusame (thin cellophane noodles used in salads and nabe); Nyumen (warm somen soup, unusual preparation of the summer noodle in hot broth).
Each noodle type has a distinct flavour and textural identity: soba's buckwheat nuttiness; udon's pure wheat softness; ramen's alkaline chew; somen's delicate neutrality — the noodle itself contributes to the complete flavour experience
Alkalinity creates colour and chew in ramen noodle (kansui is the differentiating addition); thickness inversely correlates with cooking time in most noodle types; buckwheat percentage in soba determines both flavour and structural fragility (100% buckwheat soba, juwari, breaks easily); udon requires abundant rolling and resting of the dough for its characteristic elasticity; noodle cooking always requires abundant water (1L minimum per 100g noodle).
The noodle-broth matching principle: thin, delicate noodles (somen, thin soba) match light broths; thick, substantial noodles (udon, kishimen) match robust, assertive broths; ramen's intermediate weight matches its characteristic rich broth; cooking ramen noodles al dente and finishing 30 seconds in the hot bowl broth is the restaurant technique for perfect texture at service; cold soba on the zarusoba plate should be eaten with minimum dipping (just enough tsuyu to coat the noodle, not fully submerged).
Treating different noodle types as interchangeable in recipes (soba in ramen broth, udon in soba broth — structurally incorrect matches); under-using water when cooking noodles (insufficient water causes uneven cooking and sticky noodles); failing to rinse wheat noodles after cooking when served cold (rinsing removes excess starch and refreshes the noodle texture); cooking ramen noodles in the final broth rather than separately (noodles release starch that clouds the broth).
Japanese Cooking: A Simple Art — Shizuo Tsuji