This week I take a look at thiol enhancing yeast and its application in brewing fruity IPAs. Thoils and the Modern IPA With IPAs making up over half of US Craft beer production, there has been a huge surge in interest in understanding hop aromatic compounds, including both hop oils and thiols. Thiols are a tiny fraction of hop oils but play an oversized role in generating aromatics in a finished beer, particularly the fruity flavors desired in many IPA styles like Hazy/New England IPAs. We’