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Acetaldehyde

An organic compound (chemical formula C2H2O) produced by yeast during fermentation. Acetaldehyde is actually an intermediate step in the production of ethanol, and is normally not present in significant quantities in the finished beer. Acetaldehyde has a "green apple" aroma and flavor.

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  • Part of Speech: noun
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  • Industry/Domain: Beverages
  • Category: Beer
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