​​​​​​​Improved Functional Assays and Risk Assessment for Diastatic (STA+) S. Cerevisiae | ASBC Webinar​​

Broadcast Date

​April 15, 2021

12:00-1:30 PM Central​



Questions? Contact Bryan Mowry at ASBC

Webinar Summary

Diastatic yeasts are a major contamination risk to packaged beer. Brewery quality control programs rely on microbial selective methods and PCR detection of the STA1 gene, however, there is a wide functional range of diastatic activity that remains unresolved by these current methods.  This presentation will discuss novel functional assays that provide improved risk assessment of re-fermentation in packaged products with the potential for determining contaminant thresholds for different STA1+ strains and weighing in on the decision to dump beer or issue a product recall.

About the Presenter


Lance Shaner

Lance co-founded Omega Yeast Labs in 2013.  Prior to founding Omega Yeast, he received a Ph.D. in microbiology and molecular genetics from the University of Texas – Houston and a J.D. from the University of Houston.  He has nine years of laboratory experience, including five years of original research on the stress response of Saccharomyces cerevisiae.