Finally, after lots of throwing, it was clean enough to suit me. About a quart per stook, and my stooks were small. Doing this by myself, I'd guess it took one to two hours per gallon of finished wheat. The farmers in our area are getting anywhere from 8 to 60 bushels of wheat per acre under a wide range of variables. These fluctuations include planting density, amount of rainfall or irrigation, amount and type of fertilizer used, average summer temperature, and weather extremes.
Self reliance is a very good feeling, even if it is a lot of work.
These photos forwarded by Charles Ragen . Charles says he can help get you a winnowing machine if you'd like one. An old, hand powered Chinese winnowing machine. The circular piece on the right is the hand driven fan. The fullest, heavier kernels fall in the first chute and are used for human consumption, the lighter seeds fall into the second chute and are used for animal feed.