Velveting is the Chinese pre-treatment of protein — chicken, beef, pork, shrimp, fish — in a marinade of egg white, cornstarch, and sometimes Shaoxing wine and baking soda, before cooking. The coating creates a physical barrier between the protein and high wok heat, preventing muscle-fibre moisture from escaping rapidly. The result is a dramatically more tender, silky texture. It is one of the transformative techniques of Chinese cooking — the primary reason restaurant Chinese meat is so much more tender than home-cooked versions.
Velveting fundamentally changes the experience of eating Chinese stir-fried meat. Un-velveted chicken stir-fried at home becomes dry, fibrous, and chewy. Velveted chicken is yielding, silky, almost custard-like — it yields to the tooth without resistance.
Two velveting methods: 1. Egg-white velveting (for delicate proteins — chicken, fish, shrimp): 1 egg white + 1 tbsp cornstarch + 1 tsp Shaoxing wine per 300g protein. Mix well, rest 20-30 minutes refrigerated. 2. Baking soda velveting (for tough cuts — beef, pork): 300g protein + 1/2 tsp baking soda + 1 tbsp water + 1 tsp cornstarch + 1 tbsp soy sauce. Rest 30 minutes minimum, rinse briefly if using more than 1/2 tsp baking soda. The baking soda mechanism: Alkalinity raises the pH of the muscle fibre surface, disrupting protein bonds that cause toughening during heat. Pre-cooking: After velveting, protein is pre-cooked by oil blanching (guo you 过油) at 100-150C for 30-60 seconds, or water blanching (qiao shui 汆水) at 80C for 1-2 minutes.
Velveted protein should be added to the final dish at the last moment — it is already cooked. It only needs 30 seconds of contact with the sauce. Kenji Lopez-Alt demonstrated that water-blanching velveting can achieve 90% of the result of oil-blanching at home.
Insufficient rest time: The cornstarch-egg white marinade needs 20-30 minutes to fully penetrate. Too much baking soda: More than 3/4 tsp per 300g produces a faintly soapy, mineral taste even after rinsing.
Irene Kuo, The Key to Chinese Cooking (1977); Grace Young, The Breath of a Wok (2004); Kenji Lopez-Alt, The Food Lab (2015)