Spray drying is a relatively simple and popular technology for converting liquids to dry powders. It has wide application in dairy and dairy-like products, such as coffee creamers, nonfat dried milk, dried whey, and other white ingredients. It also is used to produce soluble coffee and tea, fruit juice powders, and other ingredients. In particular, spray drying can be used to encapsulate oils and oil-soluble ingredients, such as vitamins.
Xin and Mujumdar (2010) give some useful equations for mod…