Production and Properties of Spray-Dried Whole Milk Foam

Abstract

Droplets of concentrated whole milk foam have been dried in a standard spray dryer. This has been done by incorporating N2 into the concentrate at high pressure prior to atomization. The resultant powder has excellent dispersibility properties and can be produced at rates in excess of those obtained by conventional operation. The method of foam-spray drying employed and the physical properties of the resultant powders are given in detail.