I make my own worm chow in bulk to feed my large herd of red wigglers. I use these these three ingredients:
Whole dried corn(deer corn), alfalfa pellets, and soybean meal. I mix at a ratio of 60% corn, 20% alfalfa, and 20 percent soybean meal. I mix all of these ingredients thoroughly and store my worm chow in a galvanized can to keep pests out.
To pulverize the corn and alfalfa pellets, you need a pretty strong grain mill. Here's the one I use to get a real fine consistency (like cornmeal) for my worm chow. Amazon.com: EVGTTI Electric Grain Mill Grinder, 3000W 110V Spice Grinders, Commercial Corn Mill with Funnel & Switch, Thickness Adjustable Feed Mill Powder Machine, Heavy Duty Wheat Flour Cereals Grinder : Home & Kitchen.
Worms greatly benefit from worm chow that has a smaller particle size that will allow for quick consumption.
