Grassland Dairy Products offers a wide range of butter products and buttermilk concentrate. The company produces bulk, whipped, salted and unsalted butter, anhydrous milk fat and parchment wrap. It supplies butter cups, chips and croissant slabs. Grassland Dairy Products distributes goods under the Wuthrich, Grassland and Fall Creek brands. The company packages fresh butter into various sizes and types of containers needed for consumer or institutional use. It utilizes the advanced evaporator and butteroil systems. Grassland Dairy Products has operated for more than 100 years and is based in Greenwood, Wis.