Grinds almost anything!       
Materials that have been ground include: Alfalfa, Bones, Bottles, Bread, Casein, Ceramics, Cereals, Charcoal, Chemicals, Clay, Coal, Copra, Cork, Corn, Cotton seed hulls, Feathers, Food, Fruit, Gelatin, Glass, Grains, Graphite, Gypsum, Kaolin, Limestone, Macaroni, Marble, Mica, Newspaper, Oilcake, Pepper, Phosphates, Plastics, Refuse, Roots, Sawdust, Silage, Soap chips, Soya beans, Spices, Straw, Tobacco, Vegetables, Wheat, Wood by-products, X-ray film…