Mixed Yeast Fermentation in Beer with Chris White – BeerSmith Podcast #256

by Brad Smith on April 29, 2022 · 0 comments

Chris White joins me this week to discuss the use of mixed yeast strains when making beer.

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Topics in This Week’s Episode (43:16)

  • This week I welcome back Dr Chris White. Chris is the President of White Labs Inc, a top provider of brewing yeast worldwide as well as 2015 winner of the AHA Governing Committee award for a lifetime of achievement in brewing.  He is also author of the book “Yeast” which is the ultimate reference for brewing yeast.
  • We briefly discuss some of the challenges White Labs has faced the last 2 years.
  • Chris explains what he means by mixed yeast fermentation which is simply the use of more than one strain of yeast in a single batch of beer.
  • We discuss the historical context of mixed yeast and the fact that single strains were isolated relatively recently. We also discuss historical yeast reuse.
  • Chris explains the process of yeast purification which was developed in the late 1800s.
  • We talk about some of the experiments Chris has been running using mixed yeast strains in his brewery and some of the strains that work well together.
  • We talk about potentially bad combinations of yeast.
  • We compare mixed yeast with wild and spontaneous yeast strains.
  • Chris offers his closing thoughts.


Thanks to Dr Chris White for appearing on the show and also to you for listening!
iTunes Announcements: I launched a new video channel for the BeerSmith podcast on iTunes, so subscribe now! At the moment it will only feature the new widescreen episodes (#75 and up). Older episodes are available on my revamped Youtube channel. Also all of my audio episodes are on iTunes now – so grab the older episodes if you missed any.

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