Exhibit 23.1
Consent of Independent Auditor
We consent to the incorporation by reference in Registration Statement (Nos.333-209588,333-163315,333-163314,333-148374,333-140250,333-121057,333-85112,333-85110,333-68531,333-01798 and333-12221) on FormS-8 of The Boston Beer Company, Inc. of our report dated April 4, 2019, relating to the consolidated financial statements ofOff-Centered Way, LLC and Subsidiaries, appearing in this Current Report onForm 8-K/A.
/s/ RSM US LLP
Blue Bell, Pennsylvania
September 13, 2019
