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contamination

Brewing Science Fact or Fiction? 

Fact or Fiction – Contamination in Non-Alcoholic and Low-Alcohol Beers

October 26, 2023October 26, 2023 Bryan 2 Comments contamination, e. coli, fact or fiction, infection

Time for another entry in my Fact or Fiction Series. There is an increasing interest in non-alcoholic and low-alcohol beers.

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Cheese with alte blowing
Cheese Making Food 

Late Blowing in Cheese Making

March 10, 2023March 10, 2023 Bryan 0 Comments cheese, contamination, food safety, milk, pasturizaiton, raw milk

A look at the cause and prevention of a common and dangerous form of contamination in cheese making – late blowing.

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Cheese showing early blowing
Cheese Making Food 

Early Blowing in Cheese Making

March 7, 2023March 10, 2023 Bryan 0 Comments cheese, contamination, food safety, milk, pasturizaiton, raw milk

A look at the cause and prevention of one of the more common forms of contamination in cheese making – early blowing.

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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.

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botulism toxin
Brewing Science Fact or Fiction? 

Fact or Fiction – Botulism in Beer? Part V

January 29, 2020November 2, 2020 Bryan 14 Comments botulism, brewing issues, contamination, pathogens

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

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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,

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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

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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

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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

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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.

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