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c    People






                                                                                 A talk with

 Dr.Christopher H. Hendon









                    From Durham with love, Mahlkoenig staff Kyle   nominating  Dr.  Christopher,  H.Hendon’s  achieve-
                Ramage and his frozen coffee beans became the nova   ments with “2015 Water for Coffee” and “2016
                of 36 competitors in the United States Barista    Freezing beans”, as he says, is a particularly narrow
                Championship(USBC) 2017 and wonderfully won the   summary. First of all, his ‘achievements’ should start
                trophy. He, and his dry ice frozen coffee has become   with obtaining a PhD in Chemistry at the University
                the most eye-catching part in the competition-frozen   of Bath, as well as doing a Postdoc at Massachusetts
                to-79℃, then grind and brew.                      Institute of Technology.  He is now an Assistant
                    He mentioned Dr.Christopher H. Hendon         Professor at the University of Oregon.  Of his 40+
                (Chris in following), his tech consultant, co-author   peer-reviewed publications, three involve coffee, and
                of Water for coffee in 2015 and “The effect of bean   a book “Water for Coffee”. In 2016, he gave a presen-
                origin and temperature on grinding roasted coffee”   tation on the many quantitative data and instruments
                (Uman, E., Colonna-Dashwood, M., Colonna-Dash-    used in the preparation of coffee, challenging many
                wood, L., Perger, M., Klatt, C., Leighton, S., Miller,   “certainties” that often interfere with a true qualita-
                B., Butler, K. T., Melot, B. C., Speirs, R. W., Hendon,   tive approach.
                C.H., Sci. Rep., 2016, 6, 24483) in 2016. How ever,
































                                                                      Then, he started to ground some cold coffee.In
                                                                  his research with other authors, it has been revealed
                                                                  that ‘Grinding colder coffee beans produces a more
                                                                  uniform particle distribution, with a decreased particle
                                                                  size. While the decreased particle size will tend to
                                                                  speed up extraction due to the larger surface area, the
                                                                  increased uniformity should minimise the amount of
                                                                  wasted bean, which is discarded without being ex-
                                                                  tracted to completion.’


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