The Oxford Companion to Beer

Gas chromatography has helped researchers to identify more than 250 essential oil components. Of these, 22 have been reported to affect hop aroma, and they have been divided into groups: humulene and caryophyllene oxidation products, floral-estery compounds, and citrus-piney compounds. It is these 22 that constitute the HACP (see table).

beer gods. Benjamin Franklin supposedly once said, “Beer is our best proof that God loves us and wants us to be happy.”

Benjamin Franklin supposedly once said, “Beer is our