Michigan: men unload a shipment of flour. From carts. ‘Hy Jump’ flour. A man stands in front of the control board at a flour loading factory. Bulk flour handling. Rail car is filled with flour. A transparent scale model shows how flour is transferred from truck to truck using plastic pipes and air pressure. Man delivers flour into bins with pneumatic conveyor. Man checks huge flour bin. Loaves of bread on a conveyor belt.