With a high protein content, this flour is ideal for making a hearty, springy, fluffy loaf with a fabulous crust. Sourdough starters LOVE eating whole wheat bread flour. If you're not used to baking with or eating 100% whole wheat, start out by using 1/4 whole wheat in your recipe. Ingredients: Organic Hard White Wheat. 65% Extraction (fine sifted), 100% Whole Wheat