373: Amplifying Expression in Lager Fermentation with Fermentis, Highland Park, and Boston Beer

373: Amplifying Expression in Lager Fermentation with Fermentis, Highland Park, and Boston Beer

Lager yeast and the evolution of expression is the subject of this spotlight podcast, brought to you interruption-free by Fermentis, the experts in fermentation for more than 160 years. Brewers everywhere depend on Fermentis for yeast that’s consistent, controllable, and high quality—whether you’re brewing an ester-forward Belgian-style beer, your favorite IPA, or a clean lager.

This episode focuses on an evolving subject—using lager yeast for character beyond “cleanliness,” and joining for the conversation are Urs Wellhoener, technical director and brewing R&D for Boston Beer, Grant Lawrence, former professional brewer, active homebrewer, and Southwestern sales rep for Fermentis, and Bob Kunz, founder of Highland Park Brewing in Los Angeles.

Through the podcast, we focus on the why, the what, and the how of using lager yeast to achieve not just neutral, but characterful fermentations, especially as it pertains to hop-forward lager styles. Along the way, the panelists discuss:

  • the interaction of sulfur compounds derived from hops with the sulfur compounds created through lager fermentation
  • lager strains’ beta-lyase activity and biotransformation
  • leaning into hop creep and using it to your advantage
  • reducing acetaldehyde production by changing diacetyl rest timing
  • cone angle’s impact on mercaptan formation
  • testing tried-and-true beers such as Highland Park’s Timbo Pils with alternate yeast strains

And more.

Fermentis, is a worldwide leader in brewing yeast, and brewers everywhere depend on Fermentis for successful, predictable, and controllable beer fermentation. They’re the obvious choice for beverage fermentation. To learn more about their range of dried brewing yeast and the work they’re doing to help brewers understand how to use them, visit Fermentis.com,

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415: Mathieu Paquette of Dunham Goes Hard on House Character

415: Mathieu Paquette of Dunham Goes Hard on House Character

This small brewery in Dunham, Quebec, just north of the Vermont border, features a pub, guesthouse, and extensive beer garden that make it the perfect stop-through or weekend destination for those hea...

30 Touko 20251h 12min

414: Hill Farmstead at 15—A Conversation with Shaun Hill

414: Hill Farmstead at 15—A Conversation with Shaun Hill

Few breweries in the 21st century have been as influential as Hill Farmstead on American craft beer. This rural Vermont brewery, built on the family property just outside Greensboro Bend, captured the...

23 Touko 20251h 38min

413: Hop Scientists Megan Twomey and Ryan Christian Share the Latest on Virus-Free Hops

413: Hop Scientists Megan Twomey and Ryan Christian Share the Latest on Virus-Free Hops

At the turn of the 21st century, it wasn’t uncommon for a hop grower focusing on alpha varieties to replant a field every 25 to 50 years. While the plants in the field inevitably contracted viruses, t...

16 Touko 20251h 9min

412: Colt Carpenter of Pax Verum Sources Intentional Ingredients for Nuanced Beers

412: Colt Carpenter of Pax Verum Sources Intentional Ingredients for Nuanced Beers

Over the past two years, five beers that Lapel, Indiana’s Pax Verum sent to Craft Beer & Brewing Magazine for review have scored 95 or above. That naturally piqued our interest, so when we planned our...

9 Touko 20251h 8min

411: Matt Warner of Parrotdog Takes a Counterintuitive Approach to Hops in Classic, Bright, and Hazy IPA

411: Matt Warner of Parrotdog Takes a Counterintuitive Approach to Hops in Classic, Bright, and Hazy IPA

Parrotdog has been a craft-brewing mainstay in New Zealand for nearly 15 years, and with national distribution and a production brewery and taproom steps from the beach and Wellington’s airport, they ...

2 Touko 20251h 9min

410: NZ Grape Ale? All-Riwaka Pils? Fork & Brewer’s Brayden Rawlinson Applies European Influence to Local Ingredients

410: NZ Grape Ale? All-Riwaka Pils? Fork & Brewer’s Brayden Rawlinson Applies European Influence to Local Ingredients

In Wellington, New Zealand, the Fork & Brewer has to live up to a reputation, and head brewer Brayden Rawlinson is up for the challenge. Under the leadership of previous head brewer Kelly Ryan (now wi...

25 Huhti 20251h 10min

409: NZ Pilsner in Perspective with Paweł Lewandowski of Mount Brewing

409: NZ Pilsner in Perspective with Paweł Lewandowski of Mount Brewing

While hop-forward lager may be a relatively new phenomenon in the States, New Zealand brewers have been brewing their own version of pilsner for decades using homegrown hops. Yet threading the needle ...

18 Huhti 20251h 7min

408: Brent McGlashen of Mac Hops is Harvesting Sunshine on the Family Farm in Motueka

408: Brent McGlashen of Mac Hops is Harvesting Sunshine on the Family Farm in Motueka

New Zealand is pretty far from everything, so competing on price for commodity bittering hops was never a great strategy for the country’s small number of hops growers. Things were pretty grim in the ...

11 Huhti 20251h

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