When using vacuum, the PSS VTCs ensure thorough mixing of raw materials resulting in the release of natural adhesives and the subsequent improvement of bond in the product ensuring solidity when cutting the final product. The PSS VTCs contribute significantly to the production of high quality products, which feature both excellent taste and good structure in the cut. The product which is prepared for processing is loaded into the PSS VTC drum that is characterized by a large diameter, which means enough working space for product movement in the tumbler. The specially designed massaging blades with different speeds provide the quality product massage and thus guarantee the achievement of excellent results. During the whole massaging process the temperature is constant. The PSS VTCs are characterized by rapid and perfect discharge resulting in minimal product residue in the device after processing. Cooling is provided by using the glycol circuit. As an option, it is possible to use an external cooling unit.