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Common Wine Defects

 

Name
Formula
Descriptors
Source
Acetaldehyde CH3CHO raw puimpkin sherry minor byproduct of fermentation oxidation product
Acetic Acid CH3COOH vinegar Oxidation Product
Ethyl Acetate CH3COOC2H5 finger nail polish ester of acetic acid + ethanol
Hydrogen Sulfide H2S Rotten Egg Yeasts
Diacetyl* (CH3CO)2 Buttery malolactic Fermentation

*Not considered a defect in small amounts