This invention discloses a method for
processing cocoa beans or cocoa granules, comprising the steps of: (a) adding water to cocoa beans or cocoa granules to form a suspension; (b)
wet milling the suspension; (c) subjecting the suspension to heat treatment at a temperature of 70°C or lower; (d) separating the suspension into: an aqueous phase (heavy phase), a lipid phase including cocoa oil (light phase), and a
solid phase including cocoa
powder and fluid components; (e) continuously separating the fluid components from the
solid phase obtained in step (d) by supplying the
solid phase to a mixing device to obtain cocoa
aroma and cocoa
powder; wherein the mixing device... The device includes: a cylindrical tubular body having a
horizontal axis, the tubular body having an inlet opening for a solid phase, an outlet opening for a dried solid phase, and an optional outlet opening for a
vapor phase including cocoa
aroma; end plates closing the tubular body at opposite ends; a coaxial sleeve for heating or cooling the inner wall of the tubular body to a temperature of 55°C to 150°C; and a bladed rotor supported in the tubular body for rotation, the blades of the bladed rotor being arranged in a
helical shape and oriented for centrifugally separating the solid phase and simultaneously transporting the solid phase toward the outlet opening.