The daily soup of the Japanese table — dashi (Entry JS-01) seasoned with miso, with tofu and wakame as the standard additions. Miso soup requires the understanding of exactly two things: the quality of the dashi (the soup is only as deep as its dashi) and the correct ratio of miso to dashi (the seasoning balance where the miso provides savoury depth without its fermented sharpness dominating). It is made fresh for each meal — miso soup does not reheat well (the miso's volatile aromatic compounds that make it smell alive evaporate on reheating, leaving a flat, cooked-miso note).
**The miso:** - The type of miso determines the character: white miso (shiro) produces a mild, slightly sweet soup; red miso (aka) produces a deeper, saltier, more assertive soup; mixed miso (awase) is the middle ground used in most households. - The ratio: approximately 1 tablespoon of miso per 200ml of dashi. This ratio produces a soup of the standard Japanese salt level — assertive enough to taste of miso but not so salty that the individual eating must moderate their sipping. **The technique:** 1. Bring the dashi to just below simmering (not boiling — boiling drives off the dashi's volatile aromatic compounds). 2. Dissolve the miso in a small amount of warm dashi in a separate bowl (or in a ladle) before adding to the main pot. Undissolved miso added to the pot produces clumps. 3. Never boil after adding the miso — the miso's volatile enzymes and aromatic compounds are heat-sensitive above 70°C. Boiling produces a flat, cooked-miso taste. 4. Add tofu (silken, cubed — added after the miso, warmed through briefly) and wakame (rehydrated dried wakame seaweed, added at service — it continues to expand rapidly in warm liquid). 5. Serve immediately. Decisive moment: Not boiling after miso addition — maintaining at 60–70°C for the 2–3 minutes between miso addition and service. The distinction between miso soup that smells alive and complex and miso soup that smells flat is this one decision.
Tadashi Ono & Harris Salat, *Japanese Soul Food* (2013)