for cake

Cake flour is a soft wheat flour milled to an exceptionally fine texture with a lower protein content (7-8%) compared to all-purpose flour (10-12%). Produced by grinding the endosperm of soft wheat varieties, it contains minimal gluten-forming proteins and is often bleached to further lighten its color and break down starch molecules, promoting a more delicate crumb structure. This refined product originated in the United States in the early 20th century and has become the standard flour for tender, fine-textured cakes across Western baking traditions.

Cake flour's fine particle size and low protein content create cakes with exceptionally tender, moist crumbs and a velvety mouthfeel. Its pale color and refined texture distinguish it from all-purpose or bread flours, making it the preferred choice for layer cakes, cupcakes, and delicate sponge cakes. The flour's ability to disperse uniformly throughout batter promotes even moisture distribution and superior rise.

Cake flour is the primary flour used in American and European cake baking, essential for achieving tender, fine-grained crumb structures in layer cakes, sponge cakes, and cupcakes. It is incorporated into batters where gluten development would be undesirable, as lower protein content prevents toughness and excessive density. Beyond traditional cakes, cake flour is used in some cookies, pastries, and doughnuts where tenderness is prized. Bakers typically sift or aerate cake flour before measuring to ensure accurate ratios and incorporate air into the batter. It is not recommended for bread baking, where stronger gluten development is necessary for structure and rise.