Hop Oils in Beer Brewing with Stan Hieronymus – BeerSmith Podcast #152

by Brad Smith on July 10, 2017 · 4 comments

Stan Hieronymus joins me this week to discuss cutting edge research in the use of certain hop oils in beer brewing. Stan has some interesting results regarding which oils provide key flavors in IPAs and pale ales.

Subscribe on iTunes to Audio version or Video version or on Google Play

Download the MP3 File – Right Click and Save As to download this mp3 file

Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.

Topics in This Week’s Episode (43:20)

  • Today my guest is Stan Hieronymus. Stan is the author of several books including For The Love of Hops, Brewing Local, Brew Like a Monk and Brewing with Wheat (Amazon affiliate links). Stan also runs a blog and newsletter at AppellationBeer.com
  • We discuss Stan’s upcoming trip to South Africa as well as some of the interesting hop growing going on now in South Africa.
  • We begin a discussion on hop oils including the three major groups: hydrocarbons, oxygenated hydrocarbons and sulfur compounds that together make up only 1-4% of the hop cone.
  • He starts with hydrocarbons such as myrcene which are both volatile and not very soluble in wort, so these are best used in dry hopping
  • We discuss oxygenated compounds like linalool and geraniol which are more soluble and also aromatic. These also have the interesting characteristic of often being transformed during fermentation, and are therefore well utilized in whirlpool or steeped hopping at the end of the boil.
  • Stan explains some of the biotransformations that take place during fermentation.
  • We talk about sulfur compounds which make up less than 1% of the weight but play an important role in tropical flavors that have become popular in many recent IPAs.
  • Stan also shares some recent research in hop blending where blending oils from several different hops can duplicate certain other hop combinations and even create new unique flavor compounds.
  • He shares his thoughts on upcoming hop research as well as aromatic hop oil extracts which have become popular.
  • Stan shares his closing thoughts, and we briefly discuss his books, website and newsletter on hops.


Thanks to Stan Hieronymus for appearing on the show and also to you for listening!

iTunes Announcements: I launched a new video channel for the BeerSmith podcast on iTunes, so subscribe now! At the moment it will only feature the new widescreen episodes (#75 and up). Older episodes are available on my revamped Youtube channel. Also all of my audio episodes are on iTunes now – so grab the older episodes if you missed any.

Thoughts on the Podcast?

Leave me a comment below or visit our discussion forum to leave a comment in the podcast section there.

Subscribe to the Podcast on iTunes or BeerSmith Radio

You can listen to all of my podcast episodes streaming live around the clock on our BeerSmith Radio online radio station! You can also subscribe to the audio or video using the iTunes links below, or the feed address

And finally, don’t forget to subscribe to the blog and my newsletter (or use the links in the sidebar) – to get free weekly articles on home brewing.

Related Beer Brewing Articles from BeerSmith:

Enjoy this Article? You'll Love Our BeerSmith Software!
  Don't make another bad batch of beer! Give BeerSmith a try - you'll brew your best beer ever.
Download a free 21 day trial of BeerSmith now

{ 4 comments… read them below or add one }

Paul August 2, 2017 at 9:38 am

Brad, I really have enjoyed your podcasts since I started listening about a year ago. I found this interview with Stan very fascinating and was curious to know if you or Stan has a list of the hop combinations he spoke about during the second half of the interview? If possible, could you share that list of different hop combinations and blending?

Thank you!

Brad Smith August 2, 2017 at 1:53 pm

I don’t have a record of it but you might want to check Stan’s blog (and newsletter) both of which are linked in at his web site in the show notes above.

Paul August 3, 2017 at 9:20 am

Great thank you Brad!

Northern Brewer September 5, 2018 at 5:10 pm

The Hopsteiner report is here : www hopsteiner com/blog/blending-hops-to-match-target-hop-profile/

Before getting too excited, bear in mind that it was funded by Hopsteiner, so essentially tested just their hops, and only had 10 people on the testing panel so it was easy for differences to be not significant. Anyway, in summary :
Amarillo late kettle – 5:1 Cascade:Lemondrop
Citra dry hop – 70/30 Calypso/Bravo (40/35/35 Eureka/Calypso/Apollo was tested but was rejected)
Simcoe dry hop – 50/40/10 Eureka/Apollo/Cascade (60/40 Eureka/Calypso rejected)

Looking at their spidergrams, 60/40 Eureka/Apollo looks a pretty close shout for Citra, and I wonder if something like 2:1 Eureka/Chinook might not be even closer. Eureka is the only one of theirs that gives that tropical element, so it has to figure quite highly.

Leave a Comment

Previous post:

Next post: