What is Spray Drying? Is It Safe for Food Products?
Spray drying is a process used for the production of dry powder from a liquid or slurry which is rapidly dried by using hot gas. It is a commonly used method for drying various thermally-sensitive materials, such as foods and pharmaceuticals. The basic reason behind using this method for drying some industrial products such as catalysts is the consistent particle size distribution. In this process, the air is the heated drying medium. However, if the liquid is a flammable solvent like ethanol or the product is oxygen-sensitive, nitrogen is used as the heated drying medium.
