Cantonese Master Stock (Lou Shui) — Maintenance Tradition
Guangdong Province — Cantonese and Teochew traditions
Lou shui (卤水) — master stock — is a living culture maintained by Hong Kong and Cantonese restaurants sometimes for decades. The stock, seasoned with soy, spices, Shaoxing wine, and rock sugar, is used to braise successive generations of meats (goose, duck, pork, chicken, tofu, eggs), accumulating complexity from each cooking session. Some legendary lou shui are claimed to be 50+ years old.
Deeply complex, accumulated savouriness; dark soy depth; wine aromatic; five-spice warmth layered over years; each braise is different as the stock evolves
{"Core stock: chicken and pork bones; soy (dark + light); Shaoxing wine; rock sugar; aromatics (star anise, cinnamon, bay leaf, dried mandarin peel, Sichuan pepper, cloves)","After each use: strain, skim fat, bring to boil, then refrigerate — prevents bacterial growth","Regular replenishment: add fresh stock, wine, and seasoning after each use to account for absorption and evaporation","Galangal and dried tangerine peel are the distinguishing Cantonese aromatics","The stock darkens and deepens in colour with age — this is desirable"}
{"A very old lou shui will have reduced to extremely intense, almost syrupy consistency — dilute with fresh stock for use","Restaurant lou shui often contains items accumulated over months — each adds a flavour dimension","The most flavourful parts of lou shui braised meats are often the offal — they absorb the complex stock most efficiently"}
{"Not boiling the stock after each use — the stock must reach 90°C+ each time to maintain food safety","Adding water without seasoning adjustment — dilutes flavour; replenishment must include seasoning","Letting the stock cool completely and sit in the refrigerator for weeks without use — it deteriorates without regular use"}
Land of Fish and Rice — Fuchsia Dunlop
Common Questions
Why does Cantonese Master Stock (Lou Shui) — Maintenance Tradition taste the way it does?
Deeply complex, accumulated savouriness; dark soy depth; wine aromatic; five-spice warmth layered over years; each braise is different as the stock evolves
What are common mistakes when making Cantonese Master Stock (Lou Shui) — Maintenance Tradition?
{"Not boiling the stock after each use — the stock must reach 90°C+ each time to maintain food safety","Adding water without seasoning adjustment — dilutes flavour; replenishment must include seasoning","Letting the stock cool completely and sit in the refrigerator for weeks without use — it deteriorates without regular use"}
What dishes are similar to Cantonese Master Stock (Lou Shui) — Maintenance Tradition?
Japanese tare — maintained sauce tradition, French mère sauce — base sauce maintained and evolved, Indian spice master blends maintained over generations