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

Published: Aug. 13, 2024, 6 a.m.

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\u2019s consistent, controllable, and high quality\u2014whether you\u2019re brewing an ester-forward Belgian-style beer, your favorite IPA, or a clean lager.

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This episode focuses on an evolving subject\u2014using lager yeast for character beyond \u201ccleanliness,\u201d 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.

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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:

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  • the interaction of sulfur compounds derived from hops with the sulfur compounds created through lager fermentation
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  • lager strains\u2019 beta-lyase activity and biotransformation
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  • leaning into hop creep and using it to your advantage
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  • reducing acetaldehyde production by changing diacetyl rest timing
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  • cone angle\u2019s impact on mercaptan formation
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  • testing tried-and-true beers such as Highland Park\u2019s Timbo Pils with alternate yeast strains
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And more.

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Fermentis, is a worldwide leader in brewing yeast, and brewers everywhere depend on Fermentis for successful, predictable, and controllable beer fermentation. They\u2019re the obvious choice for beverage fermentation. To learn more about their range of dried brewing yeast and the work they\u2019re doing to help brewers understand how to use them, visit Fermentis.com,

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