Sui Generis Brewing

Sui Generis Brewing

Homebrewing, Brewing Science, Yeast Wrangling and More!

  • Homebrewing
    • General Homebrewing
    • DIY
    • Recipes
    • Vintage Beers
    • Random
  • Brewing Science
    • General Zymurgy
    • Beer on the Brain
    • Fact or Fiction?
  • Yeast Wrangling
    • Your Home Yeast Lab
    • Adventures in Yeast Wrangling
  • Sour & Wild
    • Collecting Wild Yeasts
    • Wild Brewing
    • Classical Sours
    • Rapid Sours
    • Brett & Alternative Fermenters
    • Solera Brewing
  • Food
    • Fermented Foods
    • Beer in Food
    • Beer-Adjacent Foods
  • Resources
    • μBrews – Microscopy in the Brewery
    • Blog & Video Series
    • Podcasts & Interviews
    • Yeast Bank
    • Links
  • About SGB

contamination

Nitrosamines
Brewing Science Fact or Fiction? 

Fact or Fiction Part VI – Nitrosamines in Beer.

July 7, 2020July 7, 2020 Bryan 5 Comments Bacillus coagulans, brewing issues, contamination, Escherichia blattae, Nitrosamines, Obesumbacterium Proteus

In this article I discuss the formation of nitrosamines during fermentation, the risk presented by these compounds, and what we as brewers can do to eliminate them.

Read more
Brewing Science Fact or Fiction? 

Fact or Fiction – Botulism in Beer? Part V

January 29, 2020November 2, 2020 Bryan 13 Comments botulism, brewing issues, contamination, pathogens

An in-depth discussion of the risk of introducing botulism during brewing.

Read more
Brewing Science Zymurgy 

Using PCR to Identify Contamination in Beer – Part 3

December 4, 2019December 4, 2019 Bryan 2 Comments contamination, diastaticus, PCR, quality control

Note to my readers: This technique does not work as well as hoped, for reasons discussed below. I am, however,

Read more
Contamination by PCR
Brewing Science Zymurgy 

Using PCR to Identify Contamination in Beer – Part 2

November 24, 2017December 4, 2019 Bryan 4 Comments contamination, diastaticus, PCR, quality control

Note to my readers: This technique does not work as well as hoped. I am, however, completing this series as

Read more
Quality Control - Schematic
Brewing Science Zymurgy 

Using PCR to Identify Contamination in Beer – Part 1

November 22, 2017December 4, 2019 Bryan 7 Comments contamination, diastaticus, infection, PCR, quality control

Note to my readers: This technique does not work as well as hoped. I am, however, completing this series as

Read more
Brewing Science Zymurgy 

To Vrai or Not To Vrai – Another White Labs Controversy?

May 12, 2017September 15, 2017 Bryan 10 Comments contamination, white labs

The Short Version Brewing practices in both home and commercial breweries have undergone somewhat of a revolution over the past

Read more
DIY Yeast Wrangling Your Home Yeast Lab 

Purifying Yeast from Infected Cultures – Part 2

May 8, 2015September 15, 2017 Bryan 0 Comments contamination, streak plates, video, yeast isolation

A couple of days ago I put up a post describing the first step in purifying a contaminated yeast culture.

Read more
Adventures in Yeast Wrangling Yeast Wrangling 

Purifying Yeast from Infected Cultures – Part 1

May 5, 2015September 15, 2017 Bryan 1 Comment bacteria, contamination, yeast isolation

Mixed Saccharomyces (large ovoid cells) and Brettanomyces (elongated cells) yeast culture contaminated with cocci (top-centre “string”) and rod-shaped bacteria One of

Read more
Adventures in Yeast Wrangling All Brett Yeast Wrangling 

BREAKING NEWS – White Labs Official Statement on Brett trois.

April 10, 2015September 15, 2017 Bryan 1 Comment brettanomyces, contamination, white labs

As the followers of my blog are likely aware, there has been a growing body of evidence that WLP644 (Brettanomyces

Read more
Adventures in Yeast Wrangling Yeast Wrangling 

One mystery solved…

September 11, 2014September 15, 2017 Bryan 3 Comments bacteria, contamination

As I mentioned yesterday I recently developed a persistent infection of part of my brewing setup. Thee batches that passed through

Read more
  • ← Previous

Recent Posts

  • 2020 In Review
  • The Night Paddy Murphy Died
  • The (Not So Great) Lachancea Patent
  • Probiotic Beer?
  • A Surprisingly Good Beer – Rhubarb Grisette

Recent Comments

  • 2020 In Review - Sui Generis Brewing on Fact or Fiction – Botulism in Beer? Part V
  • 2020 In Review - Sui Generis Brewing on Choosing a Microscope for your Yeast Lab
  • Bryan on New Video! Casting Agar Plates
  • Primer intento de caza de levaduras salvajes | LOS CHICOS on I Get Around – Wild Yeast Version
  • Steve lovelace on CraigTube Is Gone! Why Can’t We Have Nice Things?

Archives

Meta

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org
Content in Sui Generis Brewing is liscensed under a 2021 Creative Commons Attribution 4.0 International license.
Theme Modified from ColorMag by ThemeGrill. Powered by WordPress.