Bucher Denwel De Alconox M

BUCHER DENWEL De Alconox M

Membrane dealcoholization of beer
Product Details

Key Features:

  • Preserves aroma and taste of beer, no oxygen pickup
  • Processing at low operating temperature <10 °C
  • Low energy consumption
  • Compact design with minimum space requirement

Principle:

The basic principle of this dealcoholization technology is the pressure driven separation of a water/alcohol-mixture from the alcoholic beverage through a semi-permeable membrane. The amount of remaining alcohol in the final product can be controlled with high flexibility and will be equal or lower than 0.5% ABV. Since this process takes place at low temperatures, no heatrelated off-flavors are produced. Choosing the right pore size also prevents the loss of valuable aromatic substances. The product is treated in a closed system so that no oxygen pickup occurs. This process is characterized by low energy consumption.

Process:

In the first step, the concentration phase, a mixture of water and alcohol is separated from the product so that the volume of the product is reduced between 30 and 50 %. The second step causes a further reduction of the alcohol content by washing the remaining product with de-aerated water. The f inal alcohol content and the final volume of the dealcoholized product is determined by adding de-aerated water in the third step (Re-dilution phase).

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