I have been fortune enough to be given a Wondermill through Grain Mill Wagon and absolutely love it. We have had so much fun grinding my own flour. So far we have ground black-eyed peas, popcorn and brown rice. It is easy and I am wondering if it is cheaper to do it this way then buying these different flours. You can grind all sorts of whole grains and also beans. They have a list of what the Wondermill Grain Mill can Grind.