Improvised Grain Mill
The grain mill described can efficiently pound whole-grain wheat, corn, etc., into meal and flour thereby greatly improving digestibility and avoiding the diarrhea and sore mouths that would result from eating large quantities of unground grain.
TO BUILD:
(1) Cut 3 lengths of pipe, each 30 inches long; 3/4-inch-diameter steel pipe (such as ordinary water pipe) is best.
(2) Cut the working ends of the pipe off squarely. Remove all roughness, leaving the full-wall thickness. Each working end should have the full diameter of the pipe.
(3) In preparation for binding the three pieces of pipe together into a firm bundle, encircle each piece of pipe with cushioning, slip-preventing tape, string or cloth in the locations illustrated.
(4) Tape or otherwise bind the 3 pipes into a secure bundle so that their working ends are as even as possible and are in the same plane resting evenly on a flat surface.
(5) Cut the top smoothly out of a large can. A 4-inch-diameter, 7-inch-high fruit-juice can is ideal. If you do not have a can, improvise something to keep grain together while pounding it.
Fig. ORNL-DWO 73-11449 (Illustration)
Book Page: 78
TO MAKE MEAL AND FLOUR:
(1) Put clean, dry grain ONE INCH DEEP in the can.
(2) To prevent blistering your hands, wear gloves, or wrap cloth around the upper part of the bundle of pipes.
(3) Place the can (or open-ended cylinder) on a hard, smooth, solid surface, such as concrete.
(4) To pound the grain, sit with the can held between your feet. Move the bundle of pipes straight up and down about 3 inches, with a rapid stroke.
(5) If the can is 4 inches in diameter, in 4 minutes you should be able to pound 1-1/2 lb. (one cup) of whole-kernel wheat into 1/5 lb. of fine meal and flour, and 3/10 lb. of coarse meal and fine-cracked wheat.
(6) To separate the pounded grain into fine meal, flour, coarse meal, and fine-cracked wheat, use a sieve made of window screen.
(7) To separate flour for feeding small children, place some pounded grain in an 18 X 18-inch piece of fine nylon net, gather the edges of the net together so as to hold the grain, and shake this bag-like container.
(8) To make flour fine enough for babies, pound fine meal and coarse flour still finer, and sieve it through a piece of cheesecloth or similar material.