Editing Absolute (perfumery) (section)

== Production ==
First, plant material is extracted with a hydrocarbon solvent, such as [[hexane]], to yield [[Concrete (perfumery)|concrete]]. The concrete is then extracted with [[ethanol]]. The ethanol extract is cooled (e.g., to −15&nbsp;°C) to solidify waxes, and [[Filtration#Methods|cold filtered]] to yield a liquid extract. When the ethanol evaporates, an oil—the absolute—is left behind.<ref>{{citation | editor=Arza Seidel |display-editors=et al | author=K. Hüsnü Can Başer |display-authors=et al | chapter=Essential Oils | title=Kirk-Othmer Chemical Technology of Cosmetics | year=2013 | isbn=978-1-118-40692-2}}</ref>

Traditionally, the absolute was obtained by [[enfleurage]], where the resulting [[pomade]] was extracted with ethanol to yield the absolute.