Graham flour food shops, or directly from a flour mill that has experience making it. A substitute for it would be a mix of unbleached white flour and wheat middlings; this was a common substitute prior to and after the passage of the Pure Food and Drug Act in 1906, but the FDA gradually established standards and eliminated imitations from the market. Graham flour is named after Sylvester Graham (1794–1851), an early advocate for dietary reform. Graham despised the discarding of nutrients such as germ and bran when making flour for white bread, and believed that using all of the grain in
Flour lowest in gluten protein content, with 6-7% (5-8% from second source) protein to produce minimal binding so "the cake crumbles" easily. Pastry flour has the second-lowest gluten protein content, with 7.5-9.5% (8-9% from second source) protein to hold together with a bit more strength than cakes, but still produce flaky crusts rather than hard or crisp ones. All-purpose, or "AP flour", or plain flour is medium in gluten protein content at 9.5-11.5%(10-12% from second source) protein content. It has adequate protein content for many bread and pizza bases, though bread flour and special 00 grade Italian flour are often preferred