Question: what is the difference between all purpose flour and white flour?
Answer: Unless labeled "whole-wheat," all flour is white flour: that is, milled from the starchy, innermost part of the wheat kernel, known as the endosperm. All-Purpose Flour: If a recipe calls simply for "flour," it's calling for all-purpose flour. ... Cake Flour: The flour with the lowest protein content (5 to 8 percent).