BrauKon HopBack Pellet allows for a defined control of the aroma profile through the extraction outside the whirlpool. Thus, the acquisition of essential oils can mostly be separated from the isomerization and leaching of the hops leaf fibers. The rate of isomerization, the increase of bitterness, can easily be controlled through the heat holding time. To emphasize delicate flavors of hops, BrauKon HopBack Pellet can selectively extract essential hop oils with shorter flow times.
Through the extraction after the Whirlpool, the washed-out Alpha acids are immediately cooled in the wort cooler, so that less iso-alpha acids are formed. Especially with larger quantities, the ratio of aroma and bitterness can be influenced in favor of a more harmonious balance. With this process, the release of undesirable bitter compounds from the hops solids can also be significantly reduced with a shorter extraction time. This closed process prevents the evaporation of hop aroma compounds. This creates delicate aromas without scratchy bitterness. BrauKon HopBack Pellet is also suitable for orange peels, coriander or other alternative fine-grained aroma sources.