The Bepex Thermascrew is a jacketed screw conveyor offering high heat transfer surface area. Both the vessel walls and conveying rotor are jacketed and can be thermally conditioned using a variety of media, including steam, hot thermal oil, chilled glycol or water. It provides gentle uniform heating, cooling, evaporation, and roasting. Slow rotating screw(s) protects fragile materials from breakage typically seen in other mechanical dryers.