During storage, the unstable crystalline state results in undesirable changes in the color of the cocoa powder. In addition, the cocoa powder can solidify during storage in bags or big bags due to the crystallization energy released due to the recrystallization processes.

The decisive influence on the crystalline stability of the cocoa powder is the formation of ß5 or ß6 crystals. However, these stable crystal structures can only be achieved if less stable forms have been passed through beforehand. With each transition from one crystal structure to another, energy is released. The amount of energy released varies greatly from one crystal structure transition to another.

Once these energies are released, they must be extracted from the product as efficiently as possible. This process step is of crucial importance in the stabilization of cocoa powder.

To ensure the best possible energy transfer, the CPSS process works with fluidization technology. By fluidizing the product with conditioned air, the released energy can be withdrawn from the product quickly and efficiently.

Another decisive factor for optimal stabilization is the necessary recrystallization time. It is known from scientific studies that a minimum residence time of 8-20 minutes is necessary for the best stabilization. This time span is reached in the CPSS system and can even be individually optimized for the product by setting the process parameters.

OVERVIEW

Cocoa powder stabilizing system CPSS

The stabilization system CPSS works continuously. A closed air circuit with conditioned cooling air realizes the energy transfer during stabilization. The integrated filter system cleans the exhaust air without any loss of product as the product is falling back into the product stream.

Cocoa powder stabilizing system CPSS
OVERVIEW

Cocoa powder stabilizing system CPSS

To achieve the optimal fluidization of the cocoa powder, a raking system is used above the fluidizing floor. This ensures even air distribution during fluidization.

Cocoa powder stabilizing system CPSS
OVERVIEW

Cocoa powder stabilizing system CPSS

The filter system installed in the aspiration area consists of filter cartridges with integrated continuously rotating compressed air cleaning lances. The cocoa powder cleaned off at the cartridges is returned directly to the product flow, so that there is no loss of product.

Cocoa powder stabilizing system CPSS
HIGHLIGHTS

Cocoa powder stabilizing system CPSS

Here are the highlights of the cocoa powder stabilizing system CPSS:

  • Fluidizing technology for best energy transfer during recrystallization
  • Optimum process control for adjusting the necessary air volume, its temperature and the residence time
  • No product losses in external filter systems, as an integrated filter system immediately returns separated cocoa powder to the product cycle
  • Highest bacteriological safety by an entirely closed system
CAPACITIES

Cocoa powder stabilizing system CPSS

The cocoa powder stabilizing system CPSS is available with the following capacities:

  • CPSS 10: 1000 kg/h cocoa cake
  • CPSS 20: 2000 kg/h cocoa cake
  • CPSS 40: 4000 kg/h cocoa cake