Grassland Dairy Products, Inc. | 3,710 followers on LinkedIn. Built by tradition. Sustained by innovation. | Grassland Dairy Products, Inc. maintains the Wuethrich family legacy with more than a century of churning cream into delicious butter in Greenwood, Wisconsin. Grassland applies product research and development and continuous technological improvements to maintain its reputation as a quality dairy products manufacturer. With a variety of product offerings, Grassland commits to exceeding the needs of their dairy retail, foodservice and industrial customers, both domestic and international.