Meat Inspection Division ... (w) Metals such as copper, cadmium, lead, and the like are not acceptable for use in the construction of containers, ... (b) The feeder screw of most meat grinders is cast, and the center consists of a hollow core.
|Title||:||Manual of Meat Inspection Procedures of the United States Department of Agriculture|
|Author||:||United States. Agricultural Research Service. Meat Inspection Division|