A typical five-pound bag of all-purpose flour is not entirely composed of wheat in its simplest form. The milling process removes the bran and germ, leaving the endosperm which is primarily starch. While the exact amount depends on the milling process and type of flour (whole wheat, all-purpose, etc.), a five-pound bag represents the refined product derived from a larger quantity of wheat berries. This refinement concentrates the starchy endosperm, affecting the nutritional content and baking properties compared to using the whole wheat berry.
Understanding the relationship between wheat berries and finished flour is crucial for bakers and consumers alike. Historically, milling techniques have evolved to maximize yield and produce consistent results. The shift from stone-ground to roller milling increased efficiency and dramatically altered flour characteristics. This knowledge is essential for selecting appropriate flours for various baking applications, from bread to pastries, and impacting the final product’s texture, flavor, and nutritional profile.