The ROLEC DH units utilize the SBI pump to recirculate a fermenter and simultaneously induce hop pellets dry into the stream of beer. The pellets are held in a pressurized chamber, which is purged of air using carbon dioxide (CO2). Pellets can be induced into fermenting, finished, or crashed beer. The shear pump creates a differential pressure for induction of the pellets from the hop vessel. The pellets are chopped to just the right size so they can settle during the dry hop holding period.

The ROLEC DH hop induction system, available in 2 model sizes DH90 / DH250, is a fully portable unit that contains everything necessary for dry hop induction. The ROLEC DH utilizes the SBI Shear Pump to simultaneously induce dry hop pellets directly into the stream of beer and recirculate a fermenter.  The hop chamber holds pellets in an oxygen free pressurized environment using Carbon Dioxide.  Pellets can be induced into fermenting, finished or crashed beer.  The pellets are reduced to the proper size allowing the hops to settle during the holding period allowing for maximum exposure, aroma, and flavor profiles.


  • 3 Model sizes available DH90 / DH250 / DH400
  • A glass-top manway allows the user to ensure the pellets are moving
  • Gauges and sight glasses aid the user in monitoring induction and pressures
  • Everything needed for pellet induction is contained on the ROLEC DH
  • All components are sanitary and CIPable (no additional CIP pump is required)
  • The fully portable DH can be used on many fermenters and fits well in cramped cellars
  • Recirculation can be done as long as desired (ZM Technology recommends 3-4 fermenter turnovers)
  • Improved aroma and flavor profile
* Functional design under license of ROLEC PROZESS- UND BRAUTECHNIK GMBH, GERMANY, United States Patent no. 8,875,616


The simplicity of the ROLEC DH means dry hopping just got easier.

ROLEC DH Trial Video


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