Congener Content and Expected Hangover Severity Congeners may be another hangover factor. Like alcohol, congeners are chemicals produced during fermentation, and they contribute greatly to the taste and aroma of most alcoholic beverages. Some are toxic, however, which may explain why different beverages with the same amount of ethanol seem to have different hangover severities. #Congeners #Content #Alcohol #Hangover #Severity #Pharmacology
