The NutriMill Harvest can grind grains (wheat, triticale, millet, Kamut, spelt, barley, buckwheat, rye, amaranth, sorghum, rice, and dent corn), dry beans, and lentils. It should not be used to grind moist or oily products like seeds or nuts. The NutriMill Harvest Stone Grain Mill owner's manual may answer any questions that you may have.