The Non-Volatile Contributions to Dry Hopping

Brewers who dry hop are trying to incorporate hop essential oils into their beer. However, little has been reported about non-volatile hop compounds that also dissolve into beer when one dry hops. In our June 2015 Newsletter we mentioned that after 5 days of dry-hopping Humulinones, a hop bitter acid about 65 % as bitter as isoalpha acids, readily dissolves into beer. In this Newsletter we report the concentration and utilization of Alpha Acids, Beta Acids, Humulinone, Hulupone, Xanthohumol, and Desmethylxanthohumol when a 51 IBU beer is dry-hopped with Cascade hop pellets for five days using a dose rate of 0, 0.5, 1.0 and 2 lbs of Cascade hop pellets per barrel of beer. Table one contains the complete analysis of the Cascade hop pellets analyzed the day of dry-hopping. Table 2 contains the anaylsis of the control beer along with the dry hopped beers.

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