Yes…that Michael Tonsmeire. He wrote the book on American Sour Beers (literally), and he has been blogging at Mad Fermentationist for…well, ever. He is taking time out of his busy schedule and joining our Hangout On Air, this Thursday night at 9:30pm. You can visit our Google+ Event to comment or suggest questions/topics for our interview, or you can come right back here at show time to watch. Either way, see you Thursday night!