Fusel Oil

The Fusel Oil a mixture of volatile, oily liquids produced in small amounts during alcoholic fermentation. A typical fusel oil contains 6070 percent of amyl alcohol (q.v.), smaller amounts of n-propyl and isobutyl alcohols, and traces of other components. The oil is used to designate a mixture of higher alcohols obtained during distillation of bioethanol. The oil is removed during HEF distillation using a similar but rougher operation than that used for beverages. This removal usually involves a side withdraw that is cooled prior to phase separation and from which the aqueous phase. The Fusel Oil is very effective and made for commercial use.