Hop oils
Term from the Brauwerkstatt brewing glossary, category “Ingredients”.
Explanation
Essential oils in the lupulin of the hop cone that create hop aroma. The most important are myrcene (resinous, green), humulene (woody, spicy), caryophyllene (peppery) and linalool and geraniol (floral, citrusy). They are volatile and evaporate during the boil – which is why aroma hops go in late or as dry hops.