The risk of adverse events is ever-present in any spray drying operation. Spray drying is a physical–chemical process in which evaporation transforms liquid into dry powder – and wherever there's powder or dust in spray drying plants there's a risk of explosion or even fire. 

Traditional spray nozzle technology has a number of problems that reduce production efficiency. These include low quality powder and powder consistency, bearding, sub-standard hygiene, maintenance wear and tear, and safety.