A METHOD FOR PREVENTING HEAVY METAL IN AN EXTRUDED FEED OR FOOD

摘要

The present invention relates to an apparatus and method for preventing heavy metal addition by addition of liquid water to powdery substance, slurry, melt, and/or dough to be extruded into feed or food pellets. The invention also relates to a method of producing feed or food pellets from a powdery substance, slurry, melt, and/or dough in which addition of heavy metal originating from tap water is mitigated.