Magnetic separator grids are designed for product purity for free flowing materials such as carbon black, drugs and chemicals, cosmetics, food products, plastics, grains, spices, sugar, honey, salt, and minerals. These units are easily installed in any hopper or floor opening, chute or duct. Magnetic tubes fixed onto a stainless steel framework comes a grate (grid) magnet. When anything containing iron substances passes through the framework, the iron substances will attach themselves onto the wall of the tubes. So your productions will be safe for consumption.