WBA Specialized Lectures (on demand) - Siebel Institute of Technology
Malting and Raw Materials

Hop Storage and Stability

How long will Hops keep their original characteristics?


Hop, Storage, Stability, Oxidation, Deterioration, Storage Index, HSI


In this final lecture on Hops, it is important to discuss the storage and stability of whole hops, pellets, and extracts and how they might compare.

Hop storage must protect against oxidation and excessive deterioration over time. There are methods to measure whether hops have been stored properly or not, and the most widely used method in the industry is the Hops Storage Index or HSI.

Learning Objectives

  • Hop Storage
  • Hop Oxidation
  • Hop Deterioration
  • Analytical Methods

Lecture developed by

Richard Dubé

Richard Dubé is a French Canadian residing in the US since 1993. Richard worked in the Brewing industry for 40years. 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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Lecture Duration (Narration)
17 minutes

Online Access to Lecture
10 days from time of purchase

Lecture Level


Lecture Duration
17 minutes

Online Access to Lecture
10 days from time of purchase



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