American Sour Beer Update with Michael Tonsmeire – BeerSmith Podcast #209

by Brad Smith on February 28, 2020 · 0 comments

Michael Tonsmeire joins me this week to discuss some of the things he’s learned about Sour Beers in the years since his American Sour Beers book was published.

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Topics in This Week’s Episode (49:52)

  • This week I welcome Michael Tonsmeire. Michael is the author of the book American Sour Beers (Amazon affiliate link), as well as author of the blog The Mad Fermentationist.  Michael is also an award winning brewer, certified beer judge and founder of the brewery Sapwood Cellars in Columbia MD.
  • We start with a few words about Michael’s experience with his brewery “Sapwood Cellars”.
  • Next we talk a bit about Michael’s book “American Sour Beer” and some of the new developments since he wrote the book.
  • Michael shares some of the new research as well as resources for sour beer brewers.
  • He tells us two things he believes he got wrong when he wrote the book.
  • We talk about his two concerns with the book, the largest of which was lacto-only primary fermentation.
  • We discuss some of the new topics he’s considering for a next edition of the book.
  • Michael shares a new development in lactic producing yeast strains which are heavily being researched at the moment.
  • We discuss the explosion in Kettle souring and how it has evolved.
  • Michael explains “acid shock” in sour beers, which is a particular concern for those seeking to bottle sour beers.
  • He talks about how to acclimate yeast to acid both professionally and how you can do it at home.
  • He shares his final thoughts on sour beers as well as some of the new developments at Sapwood Cellars.


Thanks to Michael Tonsmeire 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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