The Sausage Maker | Walnut Sawdust For Smoking | 5 Pound BagUSDA approved. Produced only from white walnut trees and contains no resinous wood. Meets all specifications for use in federally inspected meat and food establishments. Can weigh less than 5 pounds. Because sawdust loses moisture when stored. This product contains very fine cut wood chips, which work the same as sawdust for all Sausage Maker brand smokehouses.