ETS Laboratories2015-04-092015-04-092001https://hdl.handle.net/1813/39825ETS Laboratories has offered 4-ethylphenol as a tool for monitoring Brettanomyces in wine since 1993. New methods and equipment now allow reporting of 4-ethylguaiacol as a standard part of the 4-ethylphenol report.BrettanomycesWine and wine making