What is the benefit of wholemeal flour?

Flour oftentimes goes through a process known as bleaching. This makes the white baking flour most people are accustomed to and which they like to use in baking; however, while this makes the flour more suitable to common baked goods, it also strips much of the nutritional value from the flour. By not doing the bleaching process, you retain the whole wheat aspect of the flour, making it healthier and heartier.