Think of cake flour as the velvet of the flour world. It’s made from soft wheat, which means it has a low protein content—usually around 6 to 8%. Less protein equals less gluten, and less gluten gives you a tender, melt-in-your-mouth crumb. That’s why angel food cake and delicate sponges call for it.
If you were to swap it for all-purpose flour, your cake would turn out tough, like a rubber sole. Cake flour is the secret agent of fine texture, not a superhero of rising power.
So, does it have any leavening agents? Nope. None. Zero. Zilch. Just pure, delicate flour that needs you to add your own baking powder or soda. It’s shy and waits for instructions.
