Hopflow is a free flowing, user friendly hop extract containing alpha acids, beta acids, and essential oils. Hopflow is produced from CO2 Hop Extract from which a large portion of the beta acids have been removed, making for a liquid that is pourable at room temperature. Hopflow can be used to partially or entirely replace leaf hops or hop pellets in the kettle, helping reduce beer losses by reducing the volume of trub.


  • Bitterness
  • No heating required
  • Flexibility for dosing

Usage & Methods 

  • Typically added early in the boil for bitterness, yielding the highest level of isomerization of the alpha acids. With a boil time of at least 50 minutes, the expected isomerization is 32-38% Long boil times will result in volatilization of most of the aromatic compounds
  • Late boil additions will offer lower levels of bitterness but will preserve more of the aromatic oils that contribute to late kettle hop flavor and aroma
  • Measure by weight to the desired grams of alpha acids and pour into brew kettle. Variability in density makes volumetric measurements somewhat error prone

Notes & Suggestions

  • It is best to add extract no earlier than 10 minutes after the beginning of the boil so that hop acids are not entrained in the coagulating wort proteins, reducing efficiency
  • It is best to add no later than 10 minutes before the end of boil to assure complete mixing and to avoid having an “oil slick” of extract floating on top of the wort
  • Isomerization of alpha acids will vary depending on brewing equipment, original gravity and wort pH.
  • Brewers who are operating at high altitude where the temperature of the boil is significantly below 212°F (100°C) will find that PIKE is more readily soluble and has better utilization than HopFlow

Package & Storage

  • Standard packaging is a flowable liquid packed in poly jugs containing 1.4 Kilograms of alpha acids
  • HopFlow stored in sealed containers at temperatures <50°F (10°C) is best used within 4 years from the date of packaging. Open containers should be used within 3-4 weeks
Product Dosing Rate
IBU Target:
BBL Beer:
Hop Efficiency: %
grA required: g
Extract Alpha: %
gr of Product: g

Online calculators are designed to be informational and educational tools only. This online calculator is provided as a rough approximation and the results presented by this calculator are hypothetical and may not reflect total accuracy. Hopsteiner is not responsible for the consequences of any decisions or actions taken in reliance, nor responsible for any human or mechanical errors or omissions upon or as a result of the information provided by these tools.

BitternessAroma / FlavorFoamAnti - microbialLight StabilityKettleCold Block
Kettle Product
Lupulin PelletsHop ConeHop ConeHop ConeHop Cone
CO2-ExtractHop ConeHop ConeHop Cone
HopFlowHop ConeHop ConeHop Cone
Isomerized Kettle Extract (IKE)Hop ConeHop Cone
(Potassium) Isomerized Kettle Extract (PIKE)Hop ConeHop Cone
Salvo™Hop ConeHop ConeHop Cone
Light Stable Kettle Extract (LSKE)Hop ConeHop ConeHop Cone
Downstream Products
Alpha Extract 20%Hop ConeHop ConeHop Cone
Iso-Extract 30%Hop ConeHop ConeHop ConeHop ConeHop Cone
Rho Iso-Extract 30%Hop ConeHop ConeHop ConeHop ConeHop Cone
Tetra Iso-Extract 10%Hop ConeHop ConeHop ConeHop ConeHop Cone
Hexa Iso-Extract 10%Hop ConeHop ConeHop ConeHop ConeHop Cone
Beta Bio 45%Hop ConeHop ConeHop Cone
Hop OilsHop ConeHop ConeHop Cone