Stocks & broths
chintan / paitan
清湯 · Two classical Japanese broths distinguished by extraction method and resulting clarity. Chintan (clear soup) is produced by gentle, low-temperature simmering that extracts savory compounds while preserving transparency. Paitan (white soup) is produced by vigorous boiling or boiling-to-reduce, which emulsifies fats from the base ingredients, creating an opaque, creamy mouthfeel without cream or dairy. Both are foundational to Japanese soup cookery.
The formula
1:1–1.5 base : water (by weight)
Chintan: 500–600 g chicken carcass per 1 L water, simmered at 80–90 °C for 30–60 min; or 10–15 g kombu per 1 L cold water, held at 60–80 °C. Paitan: same bases, brought to a hard boil then reduced to a vigorous simmer for 2–4 h. Approx. 1 kg finished stock per 1.2–1.3 kg inputs (evaporation and absorption accounted).
Identity
- Transparency is non‑negotiable for chintan; opacity defines paitan.
- Low‑and‑slow extraction for chintan; vigorous boiling emulsifies fat for paitan.
- Fat content in the finished stock governs body and mouthfeel.
- Seasoning is minimal—kombu, katsuobushi, or chicken only; no onion, carrot, or celery.
- Straining through cloth or fine mesh is essential for clarity.
Ingredients
| Base | Chicken carcass/backs/necks or kombu (dried kelp) | Chicken yields the richest umami and is required for paitan; kombu provides a vegetarian/pescatarian chintan. Do not combine both in a single batch unless making a hybrid. |
| Liquid | Cold water | Always start in cold water to extract slowly and evenly; hot water extracts bitterness from proteins. |
| Aromatics | Optional: dried katsuobushi (bonito flakes) | Added only at the end for chintan, steeped off‑heat for 5 min. Never for paitan. |
| Aromatics | Optional: fresh ginger, scallion root ends | Especially for chicken paitan. Use sparingly—5 g ginger, 10 g scallion root per 1 L. |
| Seasoning | Optional: sake or mirin (for paitan) | Added at start, 30–50 mL per 1 L, to reduce gaminess and add subtle sweetness. |
Method
- 1Break down the base: chop carcass into 5–8 cm pieces, or cut kombu into 3–4 cm squares.Smaller pieces increase surface area for extraction and fit in the pot without crushing bones (which releases marrow bitterness in chintan).
- 2Cover with cold water (1:1–1.5 base : water by weight). For paitan, add sake or mirin now.Cold start dissolves proteins gradually; hot start causes rapid protein coagulation on the surface, creating bitterness and cloudiness.
- 3Bring to a bare simmer (80–90 °C) for chintan, OR bring to a hard boil for paitan, then reduce to a vigorous simmer.Below boiling, proteins and collagen extract slowly without emulsifying fat. Boiling mechanically shears fat into tiny droplets that stay suspended—this creates paitan's white appearance.
- 4Skim the surface aggressively during the first 10–15 minutes of any simmer or boil.Impurities (blood, myoglobin, denatured proteins) rise to the surface. Removing them prevents off‑flavors and maintains clarity in chintan; it also reduces foam that would make paitan bitter.
- 5For chintan: hold at 80–90 °C for 30–60 min, strain, add katsuobushi, steep off‑heat 5 min, strain again. For paitan: maintain a vigorous simmer for 2–4 h until liquid is opaque.Katsuobushi added at the end extracts umami (inosinic acid) without breaking into bitter fines. Long, aggressive simmer for paitan fully renders collagen to gelatin and emulsifies rendered fat.
- 6Season minimally—just a pinch of salt if serving as a base broth. Do not add soy sauce, miso, or any acid.The stock is a foundation; seasoning is the finishing cook's job. Acid and soy added now will concentrate and darken with storage or further cooking.
Techniques that matter
Low‑temperature extraction
Denatures proteins slowly; prevents fat emulsification; produces a transparent, delicate liquid. The same principle applies to classical French blonde stock.
Hard‑boil emulsification
Mechanical agitation at boiling point shears fat into droplets 0.1–10 µm in diameter. Gelatin from collagen‑coated droplets keeps them suspended, creating opacity.
Blanching and rinsing (for chicken paitan)
Brief boil and drain of chicken bones removes myoglobin and impurities before the true simmer begins, reducing gamey flavors and initial foam.
Cloth straining
Cheesecloth or a fine‑mesh strainer lined with a paper towel removes suspended particles that would cloud chintan. Paitan can be strained more loosely since opacity is desired.
Gelatinization control
Collagen begins converting to gelatin at 65 °C and completes above 80 °C. The gelatin coat around emulsified fat droplets gives paitan its silky mouthfeel.
Variations & derivatives
Kombu chintanJapan (vegetarian/zen cuisine)
10–15 g kombu per 1 L cold water, simmered to just below boiling (60 °C hold for 30 min, then 80 °C for 20 min), strained. Delicate, oceanic, purely umami from glutamic acid. Used in shojin ryori and clear soups.
Sakura‑dōfu chintan baseKyoto and kaiseki cuisine
Kombu chintan further clarified with an egg‑white raft (protein binds suspended particles, leaving crystal‑clear broth). Used in haut cuisine.
Torigara paitan (chicken‑bone paitan)Japan (ramen)
Chicken backs and carcasses, blanched first, then simmered aggressively for 3–4 h. The classic ramen tare base. Can be reduced by 20–30% to intensify.
Tonkotsu paitan (pork‑bone paitan)Hakata/Fukuoka ramen
Pork femurs and trotters, simmered 8–12 h for maximum gelatin and richness. Milky white, almost viscous. Often blended with chintan for balance.
Niboshi dashi (fish‑based)Regional Japan
Dried baby sardines boiled hard and long create a deeply fishy, brownish‑white stock used in some regional ramen styles. Not a true paitan but shares the vigorous‑boil technique.
Used in these dishes
Substitutions
- Chicken paitan → Pork‑bone paitan — Swap chicken bones for pork femurs and trotters. Increase simmer time to 8+ h. More mineral, deeper flavor, same emulsification principle.
- Chintan → Dashi powder (hondashi) — Reconstituted granulated dashi is an acceptable shortcut but lacks depth and body. Use 10 g powder per 1 L water. Not suitable when the stock is the star of the dish.changes result
- Kombu chintan → Shiitake chintan (vegetarian) — Substitute dried shiitake mushrooms for kombu. Use 20–30 g dried mushrooms per 1 L water. Higher glutamic acid, earthier flavor, same clear appearance.
Troubleshooting
Chintan is cloudy or has off‑flavors
Water was brought to a hard boil, or bones were crushed (exposing marrow). Insufficient skimming. Stock was boiled after aromatics were added. → Strain through cheesecloth layered with a coffee filter or paper towel. For next batch: maintain 80–90 °C, never boil; use whole bones or carcass pieces, not ground bones; skim for the first 15 minutes.
Paitan is thin and watery, not milky
Not enough fat in the base ingredients; insufficient simmering time; simmer was too gentle to emulsify. → Add rendered chicken skin or pork fat to the pot. Increase heat to a vigorous, active simmer. Extend cooking time to 3–4 h minimum. Fat must be present and agitation strong.
Paitan tastes bitter or too gamey
Chicken was not blanched and rinsed before the true simmer; bones were old or low‑quality; stock was boiled too hard at the end, concentrating bitter compounds. → Blanch chicken parts in boiling water for 3–5 min, drain, rinse, then start fresh cold water for the actual stock. Use fresher bones. Reduce heat slightly if reducing the stock.
Chintan lacks depth or umami
Kombu was not soaked long enough in cold water; katsuobushi was not added or steeped too briefly; base ingredients were low‑quality. → Soak kombu in cold water for at least 30 min before heating. Use 10–15 g katsuobushi per 1 L, steep off‑heat for 5–10 min. For chicken chintan, extend simmer to 60 min.