Master Brewers Podcast

Episode 230: Under Pressure

March 16, 2026·46 min·3-min readinterviewscience
Podzilla Summary (3 min)
TLDR
Dissolved CO2 pressure during fermentation significantly impacts yeast metabolism, reducing ester and higher alcohol production, offering brewers a new lever to fine-tune flavor profiles. This effect is strain-dependent and opens opportunities for innovation in beer styles, especially in

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Guest

K

Karen Fortman

interview on Master Brewers Podcast

Mentions

Books, people, and resources mentioned in this episode.

People

Karen FortmanAndrew McIntosh

Companies

White LabsUniversity of Florida

Products & Tools

Lallemand DiamondWLP925Water aspirator

Research & Papers

MBAA Technical Quarterly article on pressurized fermentation

Topics

Food Science

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