Stocks & broths
Chinese White Broth
白汤 · A light, clear, gelatinous broth built on a cold-start simmer of pork and chicken bones with aromatics. It is the archetypal neutral savory base of Chinese cooking — more deeply flavored than water, more restrained than Western brown stocks — lending body, umami, and mouthfeel to soups, braises, sauces, and steamed dishes. Its hallmark is a silky, barely-opaque clarity achieved through controlled temperature and the cold-start technique that causes proteins and impurities to coagulate within the bones rather than dispersing into the liquid.
The formula
1 kg mixed bones : 2–3 L cold water
Scale by whole number multiples; do not drop below 500 g bones or thermal equilibrium fails. Salt is never added during cooking — season only when the broth is used.
Identity
- Cold-start simmer: bones always started in cold water to coagulate impurities within the bone structure, yielding clarity and clean flavor — this is the defining non-negotiable technique
- Pork-chicken balance: pork provides depth, gelatin, and savoriness; chicken adds lightness and background flavor
- No caramelization: bones are rinsed only — this is a WHITE stock, never roasted or blanched
- Extended bare-simmer: 3–4 hours at 80–90 °C, never at a rolling boil, to extract gelatin without clouding
- Aromatics restrained: ginger and scallion only, added in the last 30 minutes — no carrots, celery, bay, or thyme as in Western stocks
Ingredients
| Base | Pork bones (trotters, knuckles, neck, femur) | Collagen-rich cuts are essential; trotters and knuckles yield the most gelatin for body. Use raw, unroasted bones. |
| Base | Chicken bones (backs, carcasses, necks) | Provide cleaner, lighter protein flavor; carcasses from roasted chickens may be used but produce a slightly darker result. |
| Liquid | Cold tap water | Starting in cold water is the non-negotiable technique that ensures a clear, clean-tasting broth. |
| Aromatics | Fresh ginger, smashed | 3–5 slices per liter; provides warmth and faint spice without dominating. Smashed to release juices. |
| Aromatics | Spring onions (scallions), white parts, roughly cut | 2–3 whole scallions per liter; green tops may be tied and added for color but removed before serving. |
| Seasoning | Shaoxing huangjiu (Shaoxing wine) | 30 mL per liter; optional but common. Deglazes and rounds flavor. Substitutions reduce authenticity. |
| Seasoning | Fine sea salt | Never added during cooking — seasoning the finished broth at point of use preserves the stock's utility as a neutral base. |
Method
- 1Rinse bones thoroughly under cold running water to remove loose blood and debris.Loose particulate clouds the broth and introduces off-flavors. Rinsing is not blanching — it removes surface debris without heat-denaturing proteins into the liquid.
- 2Place bones in a large stockpot; cover completely with cold water by 5–8 cm.Excess water above the bones allows for evaporation loss during the long simmer without exposing bones. Cold water from the start is what makes this a white broth.
- 3Bring slowly to a simmer over 30–40 minutes over medium heat, watching carefully as the surface approaches 80–90 °C.Slow heating causes serum proteins and blood to coagulate slowly and adhere to bones and pot walls rather than dispersing into the liquid. A rapid boil at the outset turbizes impurities and permanently clouds the stock.
- 4As soon as the liquid trembles with gentle bubbles at the surface, reduce heat to the lowest flame and maintain at a bare simmer (80–90 °C) for 3–4 hours. Skim any gray foam that rises during the first 30 minutes only.Below-boiling temperature extracts gelatin and collagen from the bones without emulsifying fat or turbulence-dispersing protein. Skimming only early on removes the bulk of coagulated impurities; continuous skimming is unnecessary and wastes liquid.
- 5Add ginger and scallions in the final 30 minutes.Aromatics are heat-labile; adding them late preserves their fresh, clean fragrance rather than allowing it to cook off over hours.
- 6Strain through a fine-mesh sieve lined with damp cheesecloth, pressing bones gently to extract liquid.Fine straining removes all bone fragments and particulate. Cheesecloth catches the finest suspended proteins. Pressing gently recovers liquid held in bone cavities without forcing cloudy solids into the strained broth.
- 7Cool the strained broth rapidly: either in an ice bath (preferred), or by setting the pot in a sink of cold water with frequent stirring. Do not leave at room temperature for more than 30 minutes.The danger zone (4–60 °C) is where bacterial growth accelerates. Rapid cooling prevents proliferation before refrigeration.
Techniques that matter
Cold-start extraction
Unlike Western stocks that blanch or roast bones first, Chinese white broth starts cold so that impurities coagulate within the bone structure rather than emulsifying into the liquid, yielding clarity and clean flavor.
Bare-simmer temperature control (80–90 °C)
At this range, gelatin dissolves maximally while fat remains un-emulsified and protein stays suspended rather than turbulent. A rolling boil would break the emulsion, cloud the stock, and make fat emulsify into a greasy, cloudy liquid.
Collagen-to-gelatin hydrolysis
Long, gentle simmering hydrolyzes collagen (connective tissue protein) into gelatin, which gives the cooled broth a trembling, jelly-like body and produces the characteristic mouth-coating richness in finished dishes.
Ice-bath cooling
Rapid cooling preserves the freshest flavor and texture of the gelatin; slow cooling at room temperature risks bacterial contamination and allows gelatin to partially set unevenly.
Variations & derivatives
Double-boiled broth (燉湯, dun tang)Cantonese
Same ingredients but cooked in a double boiler or clay pot over very gentle heat for 4–6 hours, yielding a richer, more concentrated result with greater depth.
Dried scallop broth (乾貝湯, gon bei tang)Cantonese / general
Adds 2–4 dried scallops (hao pi) to the pot for marine umami depth, creating a more premium broth used in fine noodle soups.
Pork liver broth (豬肝湯, zhu gan tang)Taiwanese / Fujianese
Includes pork liver poached separately and added at service; the broth itself remains the white base.
Aged white broth (老高湯, lao gao tang)Sichuanese
Extended 6–8 hour simmer of pork and chicken bones with additional ham and dried seafood for a richer, slightly viscous base used in restaurant-style noodle dishes.
Vegetable white brothBuddhist cuisine / vegetarian adaptation
Replaces bones with substantial plant matter: dried tofu skin, dried mushrooms, lotus root, and kombu to approximate the gelatinous body and umami.
Used in these dishes
Substitutions
- Pork trotters → Pork neck bones + pork skin — Pork skin provides similar gelatin when simmered long enough. Neck bones alone lack sufficient collagen for body.
- Chicken backs → Whole chicken carcasses or wings — Wings are higher in connective tissue and yield a richer stock; carcasses are leaner and yield a lighter result.
- Shaoxing huangjiu → Dry sherry or mirin — Mirin adds sweetness; use half the quantity. Neither replicates the fermented depth of huangjiu but both are functional.changes result
- Fresh ginger → Ground ginger (1:4 ratio by weight) — Ground ginger lacks the bright, fresh pungent quality but can stand in at reduced ratio. Add only in the final 30 minutes.changes result
Troubleshooting
Broth is cloudy and opaque
Bones were added to boiling water, boiled at too high a temperature, or were not rinsed, causing proteins and blood to turbize into the liquid rather than coagulating on the bones. → Next time, always cold-start. For a cloudy broth already made: bring to a bare simmer, add one or two egg whites beaten with a little cold water, stir gently, and let the egg whites coagulate into a raft that draws out particulate. Strain through cheesecloth.
Broth has a metallic or iron taste
Old, poorly sourced bones; over-extraction (simmered beyond 5–6 hours); or bones were not rinsed. → Use fresher bones; limit simmering to 4 hours maximum. Brief rinsing removes surface impurities for milder flavor.
Cooled broth does not set to a jelly
Insufficient collagen in the bone mix, or simmer temperature too high, breaking down gelatin prematurely, or insufficient cooking time for gelatinization to occur. → Ensure a portion of knuckles, trotters, or feet are included — these are the highest-collagen cuts. Extend simmer to 4 hours. If still loose, add a small amount of premium powdered gelatin and dissolve gently into the warm (not boiling) finished broth.
Greasy or fatty broth
Fat emulsified into the liquid from boiling or over-agitation during cooking; or fat not skimmed before cooling. → Strain broth and refrigerate overnight. The gelatin will set; the solidified fat cap can be removed entirely in one piece. Alternatively, use a fat separator cup after reheating.