Page 50 - Beverage Master February March 2020
P. 50

Craft Ag Production

               will biotransform geraniol (a bed of roses) into     success, but not all commercial brewers have the
               β-citronellol (zesty lemon), completely changing the  luxury of committing precious resources to pilot
               aroma characteristics of the beer. So, it’s not only   brews in order to find them. Beer sensory scientists
               necessary to apply sensory to hop aroma, it’s vital   can glean important information from brewing the
               to also focus on the aroma compounds present         exact same beer multiple times, tweaking only sin-
               in the end product – the beer brewed with these      gle aspects (like hop variety, hop addition timing, or
               hops, to fully understand which hop characteristics   storage conditions). The results of sensory analysis
               are of the greatest importance to brewers.           on these experiments can be passed to brewers,
                                                                    saving them time and capital, and optimizing the
                 To complicate matters further, brewing com-        quality of their outputs.
               ponents like malt and yeast contribute to flavor
               in varying degrees depending on the beer style,        The results of beer sensory studies also help brew-
               and hops contribute non-aroma characteristics to     ers by guiding hop blend development to meet
               beer such as bitterness, mouthfeel, and haze, all    specific market demands. For example, an additive
               of which are important to monitor and assess in      effect has been found to exist whereby the coexis-
               order to fully understand a hop’s full contribution   tence of linalool, geraniol, and β-citronellol creates
               to beer.                                             a strong flavor impression of lime - crucial informa-
                                                                    tion in a time where citrus flavors in beer are fer-
                             Benefit to Growers                     vidly sought, making access to hop products devel-
                                                                    oped using this information incredibly valuable.
                 Hop growers are beginning to identify the specific
               genes responsible for producing certain flavor com-    To put it simply, brewers just want to make good
               pounds and can use beer sensory data to zero in on  beer that people like, and sensory assessment
               the ones that actually make it into the final prod-  is one weapon in the arsenal that can be used
               uct. Beer sensory assessment acts as a helpful stage  towards that goal.
               in filtering through the thousands of experimental
               varieties that breeders develop to determine the                   The Circle of Sensory
               lucky few that will be planted on a large scale and
               eventually released to the public. The whole pro-      Hops growers, brewers, and the beer market are
               cess of new varietal development takes upwards       linked in a never-ending feedback cycle. Growers
               of 12 years, with only one in every 10,000 new hop   develop and produce a hop variety, brewers use
               varieties ever making it to market. This lengthy,    it to make the best beer they can, and the market
               arduous, and resource heavy process relies on        lets us know what they think with their dollars.
               sound assurances that beer drinkers will embrace     That information gets passed back to growers, who
               a new hop, in turn giving brewers a reason to wel-   can adjust according to what the people want.
               come it onto their brewing schedule.
                                                                      And the stitches linking this whole process togeth-
                 At the other end, when growers wish to tweak       er? You guessed it. Beer sensory.
               production to increase efficiency, beer sensory can
               make sure that any changes have not negatively         Written by Tessa Schilaty, Sensory Coordinator at
               impacted sensory attributes of the final product.    Yakima Chief Hops
               From optimizing harvest windows to dialing in the
               perfect kiln temperature, growers use beer sensory     At Yakima Chief Hops, we have invested in a
               feedback to guide the decision-making process.       robust hop and beer sensory program, dedicating
                                                                    time and resources to gathering this valuable infor-
                             Benefit to Brewers                     mation in-house that we then share with our indus-
                                                                    try partners. Trained YCH staff members from all
                 Brewers ask a lot of questions. How do I get my    areas of the company meet regularly to taste, sniff
               beer to taste like starfruit? When in the process    and evaluate various beers and hop varieties with
               should I add hops to achieve a perfect balance       the guidance of our own Technical and Brewing
               between fruity and bitter? How will dry-hopped       Innovations teams. Drinking beer is a tough job, but
               beer behave over time in different storage condi-    our employees are happy to take one for the team!
               tions? Answers to such questions are critical for

               48    February - March  2020      BEVERAGE MASTER





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