Malting and Raw Materials

Malt Evaluation - Brewer's View

Certificate of Analysis (COA): What to Know?


Evaluation, Barley, Certificate, COA, Analysis, Brewer


After the production of malt has been completed, and malt analyses have answered the maltster’s question “is it malt yet?”, the malt is delivered to the brewer, and now malt analyses are expected to answer the brewer’s question, “will it make beer?"
The question can be answered by malt analysis, with a focus on the most consequential measurements. The impact on the brewing process of these most meaningful measurements is explained.  Importantly, several questions that cannot be answered through the malt analyses are detailed.
The lecture sorts, categorizes, and prioritizes various malt analyses as critical, secondary, or unnecessary.

Learning Objectives

  • Questions that can be answered by the malt COA
    • Most consequential measurements
    • Influential parameters to brewing
    • Questions that cannot be answered by the malt COA
  • Focusing on what is meaningful
  • Critical, secondary, unnecessary analyses
  • Techniques to allow your process to evaluate your malt

Lecture developed by

Joe Hertrich

Joseph D. Hertrich is the retired Group Director, Brewing Raw Materials at Anheuser-Busch, Inc.  His responsibilities included the operation of the company’s malt plants, rice mills and hop farms, and the supervision of all facilities that produced and handled brewing raw materials for Anheuser-Busch products worldwide.
Prior to joining Anheuser-Busch, Mr. Hertrich held various positions in brewing with The Stroh Brewery Company, the Pabst Brewing Company, and the Christian Schmidt Brewing Company.  In retirement, he continues to consult, teach, write, and speak on his observations over 50 years in the U.S. brewing industry.  He is a faculty member at the Siebel World Brewing Academy lecturing in the Advanced Brewing Theory Course.  He also lectures at the MBAA Brewing and Malting Science Course and creates podcasts for MBAA Continuing Education.
Mr. Hertrich is a member of MBAA, ASBC, Brewers Association, and the Craft Maltsters Guild.  He is also a past member of the American Malting Barley Association and the Canadian Brewing and Malting Barley Research Institute.

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Enroll options

Lecture Duration (Narration)
52 minutes

Online Access to Lecture
10 days from time of purchase

Lecture Level


Lecture Duration
52 minutes

Online Access to Lecture
10 days from time of purchase



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