Master Brewers Podcast

Do you know how much DO is in your wort? What percentage of injected oxygen is solubilized? Derek Dawson set out to answer these questions at Modern Times Beer. 

LINKS:

• 2018 Brewing Summit Poster: Developing a practical method for determining dissolved oxygen levels in knockout wort and its effects on the health of Saccharomyces strains in the brewery

Sponsored By:

• ABS:
• Barnum Mechanical:
• DraughtLab:
• Hopsteiner:

Kerry Caldwell suffered severe injuries from an accident in the brewhouse. She was airlifted and overcame the 34% chance of survival calculated by the hospital. This episode is both the story of her accident and a description of a simple, inexpensive device that should be installed in your brewery to prevent similar accidents. 

Special Guest: Kerry Bloxham (Caldwell).

Sponsored By:

• Hopsteiner:
• Proximity Malt:
• BSG:
• Gusmer:
• Precision Fermentation:
• Brew Ninja:
• MoreBeer:

Links:

• Boil-Over Protection
• Brewery Safety — Master Brewers Brewery Safety Website
• Brewery Configuration for Craft Brewing Optimization — 1997 MBAA TQ
• Upcoming Events - Master Brewers Calendar
• 2021 Master Brewers Conference — REGISTRATION NOW OPEN!
• Technical Quarterly Author Guidelines — Submit Your Own TQ Article!
• Join Master Brewers — Use promo code BEER2021 to save 20% on dues

Kerry Caldwell suffered severe injuries from an accident in the brewhouse. She was airlifted and overcame the 34% chance of survival calculated by the hospital. This episode is both the story of her accident and a description of a simple, inexpensive device that should be installed in your brewery to prevent similar accidents. 

Special Guest: Kerry Bloxham (Caldwell).

Sponsored By:

• Hopsteiner:
• ABS:
• Proximity Malt:
• White Labs:
• BSG:
• Malteurop:

Links:

• Boil-Over Protection — Boil-Over Protection
• Brewery Safety — Master Brewers Brewery Safety Website
• Master Brewers Live!

When Madtree Brewing Co. expanded from a 15 bbl brewhouse to a 100 bbl brewhouse, they experienced intermittent acetaldehyde spikes in one of their brands. Becca Ransohof & Trent Leslie walk us through the troubleshooting process that resolved the issue.

Links: 

• Get the fishbone diagrams
• Brewing Summit Poster: A practice in problem solving—Managing acetaldehyde in a 100 bbl brewhouse
• Get the Brewing Summit Proceedings

Special Guests: Becca Ransohoff and Trent Leslie.

Sponsored By:

• ABS:
• Barnum Mechanical:
• DraughtLab:
• Hopsteiner:

The Guinness brewery was founded in 1759 by Arthur Guinness. The Guinness brewery group were early exponents of the advancements in microbiology, and particularly yeast husbandry that took place in Europe at the end of the 19th Century. This led Guinness to establish the Watling laboratory in 1901 and subsequent St James’s Gate yeast Library.

16 Guinness yeast isolates were taken from the St James’s Gate yeast library and sequenced using next generation whole genome sequencing. Using Single Nucleotide Polymorphism (SNP) analysis, the genetic lineage of the Guinness yeast were established, with the Guinness yeast forming a monophyletic group (all descendants of a common ancestor). Previous yeast studies have attributed geographical location to domestication; using this information the Guinness yeast were placed with yeast domesticated in the United Kingdom and the United States.

Within the 300+ yeast stored in the St James’s Gate yeast Library there are yeast from historical Irish Brewers. Using the same methods that established the genetic lineage of the Guinness yeast, 8 Irish brewing yeast were similarly assessed. In addition to the genotypic analysis of the Guinness and Irish yeast, the phenotype of the different yeasts were determined.

In this paper we present an understanding of the Guinness and Irish yeast from a genotypic and phenotypic perspective. This analysis established that despite the different brewing attributes of these Irish yeast they all have a common genetic ancestry which is different to that of the United Kingdom yeast and the United States yeast. Consequently, we suggest that there is potential scope for an Irish brewing terroir concept based upon brewing with Irish yeast.

Special Guest: Daniel Kerruish.

Sponsored By:

• Hopsteiner:
• Proximity Malt:
• BSG:
• Precision Fermentation:
• The Lupulin Exchange:
• Berkeley Yeast:
• cytiva:
• ProLeiT:

Links:

• Presentation 12 - The Guinness Yeast and Irish Brewing Terroir — WBC Connect 9.29.20
• World Brewing Congress 2024
• Upcoming Events - Master Brewers Calendar
• Join Master Brewers