Random Fluidic Self-Assembly of Microfabricated Metal Particles

An apparatus for processing edible foodstuffs having a cylindrical casing and a screw conveyor coaxially disposed within the casing for transporting a food product from one end to a point adjacent the other. A vertical discharge flue is positioned adjacent the discharge end of the casing and is in communication with an opening at the bottom thereof. Heat-exchanging liquid is introduced into the casing through orifices in the bottom to heat or cool the product, as the case may be, and in an amount sufficient to fill the casing to a level above that of the screw conveyor. The liquid entrains the product at a point adjacent the discharge end of the casing causing it to flow through the bottom opening thereof and vertically up through the discharge flue from which it passes over a weir at the top thereof at a level substantially equal to the elevation of the liquid in the casing. The liquid assisted transport thereby achieves elevation of the product without risk of damage thereto.