Spray drying

Used for preparation of dry stable additives, instant food powders, functional ingredients and flavours. Uses a spray drying chamber and a cyclone. Can be operated co-current, counter-current or a mixture. Heat and mass transfer induced by the movement of air in the chamber. High pressure nozzles centrifugal atomizers are used. Rapid drying due to small size of liquid droplets. Residence time is 5-100 seconds