This invention relates generally to ultrasonic extrusion apparatus, methods and products. A flowable substrate may be supplied by an infeed to an extrusion chamber having an ultrasonic horn. The flowable substrate contacts the ultrasonic resonant horn and receives ultrasonic energy before and/or as passing through an extrusion orifice. Suitable flowable substrates may include meat emulsions, pomace solutions, and dough. The extruded product may have virtually any solid or hollow shape. The flowable substrate may form a shape-retaining product that may be cut without significantly deforming.
