To change color and pH of cocoa powders, alkalization or “Dutching” can e.g. be done in a batch roaster. Whenever a wider range of colors or even more specific colors or shades (such as bright red, black, etc.) is requested, a reactor system should be the preferred choice. The pressure tight system easily can handle different pro-cess conditions, such as atmospheric, low and high pressures, steam, air or even oxygen injection as well as heavy aeration or vacuum treatment.
The reactor shape and helix of the mixer are especially designed for the processing of sensitive cocoa nibs. Low and in particular high alkalized cocoa nibs are gently mixed.
Different recipes for a wide range of colors and pH values are stored in the control system memory and can be recalled when needed.
The capacity of the FNA plant perfectly matches the Probat FRD/C roaster.