brewmastern.
/ˈbruːˌmɑːstə/, /ˈbruːˌmastə/, U.S. /ˈbruˌmæstər/ Originally U.S.
A person who supervises or manages the brewing process in a brewery; a master brewer.
ΚΠ
1871 N.-Y. Times 11 Apr. 2/7 There were two wagons with German and American hops; a complete brewery in full operation, with brewmaster and brewer; [etc.].
1907 U.S. Brewers Acad. 3 The Presidents, Superintendents and Brewmasters of the largest breweries of the country..are graduates of this school.
1949 M. Weeks Beer & Brewing in Amer. iii. 38 Every step..from malt to truck is under the supervision of one man: the brewmaster, or master brewer.
2000 Independent (Nexis) 19 July 2 Working with an Indian brewmaster, he devised the special recipe, with ingredients including rice and maize.
This is a new entry (OED Third Edition, March 2006; most recently modified version published online December 2021).
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n.1871