HopFlow is a user friendly form of CO2 hop extract, produced through the extraction of hop pellets with food-grade carbon dioxide. HopFlow is a free flowing extract containing alpha acids, beta acids and hop essential oils.

HopFlow can be used to partially or entirely replace leaf hops or hop pellets in the brewing process.

HopFlow allows brewers a quick and easy way to add hop extract to the kettle without the needed step of heating, just pour out what you need. 


Short description
hop extract for for bitterness and hop flavor during wort boiling, flowable at room temperature
Alpha acids
65 - 75 %
Iso-alpha acids
< 2 %
Beta acids
< 5 %
Hop oils
12 - 18 ml/100 g
4.0 ± 0.5
0.9 - 1.0 g/ml (20 °C / 68 °F)
300 - 500 mPas (45 °C / 113 °F)



HopFlow is a gold amber brown flowable syrup-like extract.


The flavor characteristics of the original hops are almost completely retained in HopFlow. Early additions of HopFlow during wort boiling mainly serve to impart bitterness while late addition imparts some hop character due to the retention of some hop oils in the wort.


If HopFlow is boiled for at least 50 minutes, utilization within the range of 32 - 38 % can be expected. Actual utilization will vary from brewery to brewery due to differences in equipment and process conditions.


All Hopsteiner® products are processed in facilities which fulfill internationally recognized quality standards. A monitoring system for residues is in place.


Our products are delivered in their respective recommended standard packaging. Alternatives may be possible upon customer request.
Standard packages of our processing plants in the USA (US) and Germany (DE) are:

  • Poly jugs of 1.4 kg alpha acids (US)


HopFlow is typically added to the wort kettle as a complete or partial replacement for leaf hops or hop pellets.


Kettle additions of HopFlow are based on the concentration of alpha acids, an estimated or known utilization and the desired intensity of bitterness in the beer.


For the highest possible utilization, HopFlow should be added early in the wort boiling process. Pre-warming is not necessary as HopFlow is flowable at room temperature already. 


The recommended storage temperature in the original unopened packaging is  < 10 °C (50 °F).

Short-term, transport-related temperature deviations do not affect product quality.

Best Before Date

Under the recommended storage conditions, the shelf life from the date of production/ packaging is at least 4 years.


Ensure good ventilation of the workplace and wear personal protective equipment. Avoid contact with eyes and skin. Do not inhale vapors or dusts. For full safety information, please refer to the relevant Hopsteiner® safety data sheet.

Analytical Methods

International approved methods listed in commitees such as ASBC or Analytica-EBC using current standards are applied.

Product analytics
Concentration of bitter substances
  • Analytica EBC 7.6 (LCV)
  • ASBC Hops-8 (II) (LCV)
  • Analytica-EBC 7.7 (HPLC)
  • ASBC Hops-14 (HPLC)
  • ASBC Hops-8 (I) (Spectro)
Concentration of hop oils
  • Analytica-EBC 7.10 (Distillation)
  • ASBC Hops-13 (Distillation)

Technical Support

We are pleased to offer assistance and advice on:

  • safety data sheets
  • support for brewing trials on a pilot or commercial scale
  • analytical services and information about analytical procedures

Disclaimer: The information provided in this document is believed to be correct and valid. However, Hopsteiner® does not guarantee that the information provided here is complete or accurate and thus assumes no liability for any consequences resulting from its application.

Last updated: 18.04.2024

Show PDF