What is FUSEL OIL?

A mixed residue of alcohols of higher boilingpoint than ordinary ethyl alcohol, together with some aldehydes, esters, and other substances, including pelargonic and capric acids, left as a byproduct from the distillation of alcohol produced by fermentation, particularly that from potato starch. One of its chief constituents is isoamyl alcohol. It has an unpleasant odour and taste, and it is therefore of importance to remove it from spirits intended for consumption.

Link to This Definition
Did you find this definition of FUSEL OIL helpful? You can share it by copying the code below and adding it to your blog or web page.
Definition of  FUSEL OIL