Abstract: Fluid foods and beverages are prepared by feeding a liquid and particles for consumption in a food or beverage, wherein the particles have an average size less than 1 mm, into a chamber area having opposing sides defined by a face of one stationary disc and a face of one rotatable disc. Spikes extend from each disc face transversely into the chamber area, and the discs and spikes are configured and positioned so that the spikes are disposed in an interdigital relationship so that upon rotation of the rotatable disc, the spikes do not interfere with disc rotation. Upon feeding the particles and liquid into the chamber area, the rotatable disc is rotated for a time for mixing the particles and liquid to obtain the fluid food or beverage which is removed from the chamber area centrifugally, and the preparation process is particularly adapted for preparing individual vended servings.