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Originally, the Gordon Biersch Brewing Co. under the "dba" name of "Hoppen Und Malz Brewing Co., San Jose, CA". (Interestingly, some of the rear labels stated: "Developed for Costco by German-educated brewmaster Dan Gordon".) It appears that recent batches (or perhaps just for the East Coast?) are coming from F. X. Matt, with the "dba" of "New Yorker Brewing Co., Utica, NY".

