Extrusion Zumbro River Brand, Inc. offers quality custom Twin Screw Extrusion Technology to produce a variety of extruded products to meet your specifications.  We can provide direct expanded, co-extruded, and formed (half-products). Whey and Soy Snacks Puffed Snacks and Cereals Soy and Whey Crispies Textured Soy Protein pieces Multigrain Crisps Packaging in bags, boxes and totes is available as well as retail packages in a variety of sizes.