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  1. Northern_Brewer

    From the lab - wine yeast POF and killer status

    I knocked up the following for my own use and figured others might be interested, it's based on Hisamoto et al (2010) who were looking for POF- wine yeasts to ferment the Japanese Koshu grape which is apparently notorious for its phenolics. So they measured 4-vinylphenol and 4-vinylguaiacol (in...
  2. Ouroboros

    Ester/Phenol Balance in Weizen

    I'm a huge fan of a hefeweizen or a dunkelweizen in a hot summer day, but with some commercial brews I feel like the ester taste/aroma seems to dominate the spicy phenolic component by the end of the glass. The level of banana in Franziskaner or Paulaner are plenty for my tastes. I hear some...