EXHIBIT (99.1)



                             JOINT FILING AGREEMENT



     In  accordance  with Rule  13d-1(k)(1)  promulgated  under  the  Securities
Exchange Act of 1934, the  undersigned  agree to the joint filing of a Statement
on Schedule 13G (including  any and all amendments  thereto) with respect to the
Class A Common Stock,  $0.01 par value,  of The Boston Beer Company,  Inc.,  and
further  agree  to the  filing  of this  agreement  as an  Exhibit  thereto.  In
addition,  each party to this Agreement expressly authorizes each other party to
this Agreement to file on its behalf any and all amendments to such Statement on
Schedule 13G.


Date:  May 3, 2001


                                GOLDMAN, SACHS & CO. on behalf of
                                Goldman Sachs Asset Management

                                By: /s/ Roger S. Begelman
                                   ----------------------------------------
                                Name:   Roger S. Begelman
                                Title:  Attorney-in-fact


                                GOLDMAN SACHS 1998 EXCHANGE PLACE FUND, L.P.

                                By: /s/ Roger S. Begelman
                                   ----------------------------------------
                                Name:   Roger S. Begelman
                                Title:  Attorney-in-fact


                                GOLDMAN SACHS 1997 EXCHANGE PLACE FUND, L.P.

                                By: /s/ Roger S. Begelman
                                   ----------------------------------------
                                Name:   Roger S. Begelman
                                Title:  Attorney-in-fact


                                GOLDMAN SACHS MANAGEMENT PARTNERS, L.P.

                                By: /s/ Roger S. Begelman
                                   ----------------------------------------
                                Name:   Roger S. Begelman
                                Title:  Attorney-in-fact