Central Bi-Products is a full-service rendering company that operates three complexes: one in Redwood Falls, one in Long Prairie, MN and one in Estherville, IA. Both complexes in Minnesota operate rendering processes for multi-species raw material, poultry raw material, feathers and blood. Each of these processes is supported by its own protein blending plants that provide total protein product segregation. The Iowa facility houses one plant that processes both porcine and poultry materials.