sized

Sized refers to a starch-based or protein-based coating or preparation used in culinary contexts to modify the surface properties of ingredients, most commonly in the preparation of foods for deep frying or as a binding agent in breading. The term derives from historical textile manufacturing, where sizing was applied to fabrics to provide stiffness and body. In cooking, sizing typically involves the application of a thin, adhesive layer—often made from cornstarch, flour, egg white, or potato starch—that helps prevent moisture loss, aids in browning, or improves the adhesion of subsequent coatings such as breadcrumbs or batters. The practice is particularly prevalent in Asian cuisines, where it is used to achieve a crispy exterior and sealed interior in fried dishes.

Sizing is employed in cooking to enhance texture and appearance, particularly in fried preparations. In Chinese cuisine, vegetables, proteins, and seafood are often sized before stir-frying to create a light, protective seal that locks in moisture and promotes even browning. The technique is also used in battering processes, where a starch-based sizing layer provides better adhesion for flour or breadcrumb coatings. Beyond frying, sizing can be applied to dough or batter to improve structure and prevent excessive absorption of cooking medium. The practice is common in professional kitchens and restaurant preparation of dishes such as tempura, fried tofu, and battered fish.