fusel oil

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fu·sel oil

a mixture of side products of alcoholic fermentation; consists primarily of alcohols (for example, amyl, propyl, isoamyl, and isobutyl alcohols).
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References in periodicals archive ?
Fusel Oil as Precursor for Aroma Generation by Biotransformation Using Lipase Scientific Note.
Enzymatic esterification of isoamyl alcohol obtained from fusel oil: Optimization by response surface methodology.
Determination of methanol and fusel oil using a graphitized carbon black column.
Gas chromatographic determination and pattern recognition analysis of methanol and fusel oil concentrations in whiskeys.
Yeast don't benefit energetically by making fusel oil, nor for the most part in any other way.
More than 100 years ago (in 1907), the origin and reason for fusel oil seemed abundantly clear.
The main contents of both were ethyl alcohol and water Aged whiskey contained larger amounts of poisonous fusel oil than rectified, and rectified whiskey sometimes had small amounts of coloring and flavoring that were absent from aged whiskey.
As a chemist, Wiley could have tried to win the support of the rectifiers by arguing (accurately) that their method resulted in a product containing less fusel oil, and hence more pure.
Fusel oils can be totally removed very simply with charcoal.
After the charcoal has had about a week to absorb all the fusel oils, add about a quart of cherry wood chips and about an equal volume of white oak chips.
Nonetheless, removing the aldehydes and fusel oils from hi-proof brandy was an enormous step in quality improvement.
He said you can draw off distillates at various levels; the trick is to know the correct level to retain the right flavor ingredients (congeners) without harsher fusel oils.