WBA Specialized Lectures - Siebel Institute of Technology
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Quality Assurance and Control

Detection and Identification of Brewery Contaminants

I know they are here. How can I find them?


Stains, Contaminants, Detection, Identification, Oxidase, Catalase, Media, Plating


If you have a good understanding of brewing microbiology generic terms and also understand the concept of a brewery being an environment conducive to harbor a wide spectrum of microorganisms, it becomes obvious that to ensure a microbiological stable product, one must be able to Detect and even Identify those potentially beer spoiler contaminants.

Learning Objectives

  • Differentiate between traditional and modern approaches of detection and identification
  • Define and describe the most universally used methods
  • Construct a scheme for detection and identification
  • Establish a course of actions, including the selection of media, to successfully identify contaminants

Lecture developed by

Richard Dubé

Richard Dubé is a French Canadian residing in the US since 1993. Richard worked in the Brewing industry for 20years. He has a B.Sc. in Microbiology- Biochemistry, and earned an Associate Diploma from the Institute of Brewing, London, England. Richard first worked with Molson Breweries in Quality Control and Research. Then he occupied various positions in all Production departments while with Labatt's/Budweiser. Richard relocated to the US when offered the responsibilities of Product Development and Quality Control in several contract brewing sites under Boston Beer Company. Two years after working at bringing the BBC culture to the newly acquired Sam Adams Brewery in Cincinnati, Richard partially retired from brewing in 2000. He completed his Master in Art of Teaching and taught high school science for the next ten years. Richard actively returned to the brewing industry first as Brewmaster, then Vice-President Brewing and Quality for Christian Moerlein Brewing Company. Richard is currently the Siebel Director of online Education and the co-founder and Brewmaster of Braxton Brewing Company.

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Enroll options

Lecture Duration (Narration)
45 minutes

Lecture Availability
10 days from purchase

Lecture Level


Lecture Duration
45 minutes

Lecture Availability
10 days from purchase



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