Velveting 上浆
Why it works
A thin coat of salt, egg white and starch clings to the sliced meat. In the heat the starch gelatinizes and the egg proteins set into a soft shell. The shell slows moisture loss and shields the surface from the wok, so the meat stays tender and silky.
Key numbers
- Per 250 g sliced meat
- ¼ tsp salt · 1 tbsp egg white · 1–2 tsp cornstarch
- Rest
- 15–30 min
- Pre-cook
- Just below a simmer, ~90 °C, 30–60 s
Why it fails
- Too much starch turns the coating pasty.
- Water at a rolling boil strips the coating off.
- A crowded wok steams the meat instead of searing it.
Healthier
Pre-cooking in water instead of passing the meat through oil (滑油) keeps the texture while leaving most of the oil out.
Origin
A foundation of Chinese stir-frying. 上浆 means “putting on a coat”, and it is how restaurant stir-fries get their soft, glossy meat.
Sources
- [1] Harold McGee, On Food and Cooking (2004)
- [2] J. Kenji López-Alt, The Wok (2022)