This short course covers the underlying principles of extrusion processing from raw materials selection and equipment to post-processing operations and control systems. Lectures focus on a diverse range of extruded products, including breakfast cereals, snacks, pet food, and feed for poultry, animal and aquatic species. The course also emphasizes business planning and the commercialization aspects of setting up an extrusion plant. Lab sessions provide hands-on experience with pilot-scale extrusion equipment.