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Lesson Information

Pre-requisite Knowledge:

  1. Introduction to Yeast (Yeast/Lesson 1)

  2. Yeast Management (Yeast/Lesson 8)

Learning Outcomes:

  1. Describe how yeast growth is measured.

  2. Discuss what viability is and how it is measured in brewing yeast.

  3. Distinguish between viability and vitality, give examples of the various methods that are used to assess viability and discuss how the methods might be applied in commercial brewing.

  4. Describe, with diagrams, the patterns of growth we would expect to see in a typical brewery fermentation.

  5. Explain the basis of the various methods used to pitch and crop brewing fermentations.

  6. Discuss the important factors that need to be considered when storing cropped yeast so that it is fit for re-pitching.

  7. Describe, with diagrams, the key features of a vessel suitable for storing cropped yeast slurry.

  8. Critically assess the process used by some brewers to disinfect pitching yeast with acid.

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