Fat or mixtures of these are melted at not more than 15 degrees above their melting point; mixed and passed homogenised for rapid cooling down to the bottom third of the melting/solidification point intervals; held 30 mins. then raised to 10% below melting point; and sprayed into a crystalliser. Here, an air circuit at -15 and +30 degrees C. and oxygen are supplied to form a bionegative sheath protecting against breakdown. Inactive alpha and beta-crystals forming are passed out for phase stabilising and bio-reactivation in a chamber at 0-10 degrees C. The reactivated fat powder obtained is mixed with additives in proportions controlled by primary and secondary batch weighers.
