Chinese Velveting — Starch Science and Chemistry
Southern China, Cantonese culinary tradition
Velveting (guo you or shang jiang) creates the silky texture of restaurant-quality stir-fried meat by pre-treating with alkaline marinade or oil-blanching. Baking soda raises pH, breaking myosin cross-links and preventing protein contraction during high-heat cooking. The result is impossibly tender meat even from tougher cuts.