Diacetyl is a kind of ketone, which is an organic compound produced when alcohol is oxidized during the primary fermentation of beer. Yeast is a magical organism that handles the production of bread, wine, distilled beverages, and beer. When yeast ferments beer, it produces more than 500 different c

Both commercial brewers and homebrewers are doing their best to reduce the oxygen content in the finished beer. The oxygen in the finished beer will destroy the long-term stability of the beer’s flavor and clarity, as well as cause peculiar smells. The oxidized beer will show a paper peculiar smell