EXHIBIT 19

        EXTENSION OF TERM OF NOTES UNDER MASTER LINE OF CREDIT AGREEMENT


     This Extension of Term of Notes under Master Line of Credit Agreement (this
"Agreement")  is made and entered into as of February  14, 2002 (the  "Effective
Date") by and between Mendocino Brewing Company,  Inc., a California corporation
("Borrower"),  and United  Breweries of America,  Inc.,  a Delaware  corporation
("Lender").

                                    RECITALS

     A. Borrower and Lender entered into a Master Line of Credit Agreement dated
August  31,  1999  (the  Master  Line of  Credit  Agreement,  together  with all
amendments  thereto  shall  hereinafter  be referred  to,  collectively,  as the
"Master  Agreement"),  which provides that on the terms and conditions contained
therein,  Lender  would make  available  to  Borrower a credit  facility  in the
principal amount of $800,000.

     B. The Master  Agreement was  subsequently  amended on April 28, 2000,  and
February 12, 2001, to increase the principal  amount  available under the credit
facility to an aggregate of $1,600,000.

     C. Pursuant to the Master Agreement, Borrower made thirteen (13) promissory
notes in favor of Lender as listed on  Exhibit A  (collectively,  the  "Notes").

     D. Subject to the terms and conditions of this Agreement,  the parties wish
to (i)  confirm  the  extension  of the terms of certain of the Notes,  and (ii)
extend the terms of certain of the Notes.

     E. Any  capitalized  terms not  otherwise  defined  herein  shall  have the
meanings set forth in the Master Agreement.

     NOW,  THEREFORE,  for good and  valuable  consideration,  the  receipt  and
sufficiency of which is acknowledged, Borrower and Lender agree as follows:

     1. Extension of Term.  The Notes provide that Lender has the right,  at any
time on or after the  respective  maturity  dates of the Notes,  to convert  the
Notes into shares of Borrower's  common stock.  However,  Section 3 of the Notes
provides that in the event that Lender has not  converted  the entire  principal
amount of any Note on or before its  respective  maturity  date,  Lender has the
right to extend the term of such Note for a period of time mutually  agreed upon
between Lender and Borrower. Borrower and Lender had previously agreed to extend
the term of each of the Notes  itemized Nos. 1 through 8 on Exhibit A, effective
as of the maturity date of each  respective  Note,  for an indefinite  period of
time pending the Borrower's and Lender's discussions regarding conversion of the
Notes; this Agreement hereby confirms that agreement.  The parties hereby modify
their  previous  agreement  and  agree to  extend  the term of each of the Notes
itemized  Nos. 1 through 12 on Exhibit A,  effective as of the maturity  date of
each respective Note, for a period of time ending on August 15, 2002.


                              Exhibit 19 - page 1



     2. Capitalization of Interest.  The Notes provide that the accrued interest
thereon  shall be paid to Lender  quarterly  on the  first day of the  months of
April,  July,  October,  and January.  Borrower and Lender hereby agree that the
interest which accrues on the Notes during each such quarterly  period may, upon
the mutual agreement of the parties, be capitalized and treated as principal for
the purposes of repayment and/or conversion.

     3. Attorneys'  Fees. In any legal action between  Borrower and Lender,  the
prevailing  party in such legal action shall be entitled to recover for the fees
and  expenses  of its  attorneys  in  such  amount  as  the  court  may  adjudge
reasonable.  The  prevailing  party shall be determined by the court based on an
assessment of which party's major arguments or positions taken in the proceeding
could fairly be said to have prevailed over the other party's major arguments or
positions on major disputed issues in the court's decision.

     4.  Notices.  All notices and demands which are required or permitted to be
given hereunder shall be in writing and shall either be personally  delivered or
transmitted  by United States mail,  certified or registered,  postage  prepaid,
return receipt  requested,  as elected by the party giving such notice or demand
as follows:

                  To Borrower:     Mendocino Brewing Company, Inc.
                                   13351 Highway 101 South
                                   Hopland, California 95449

                  To Lender:       United Breweries of America, Inc.
                                   Three Harbor Drive, Suite 115
                                   Sausalito, California 94965

All  notices  shall be  deemed  to have  been  given as of the date of  personal
delivery  or three (1)  business  days after the date of mailing,  whichever  is
applicable.  Either  party  hereto may change  its  address by giving  notice as
stated above to the other party.

     5. Representations.

          5.1 Borrower  represents and warrants to Lender that: (i) Borrower has
     the full power and authority to enter into and perform this Agreement; (ii)
     the extension of the terms of the Notes contemplated in this Agreement does
     not  conflict  with or  constitute  a material  breach of, or  constitute a
     default  under,  any  contract,  agreement  or  other  instrument  by which
     Borrower is a party or by which it is bound;  and (iii) no consent from any
     third  party  is  required  to  effectuate  the  transactions  contemplated
     hereunder.  Borrower  hereby agrees to indemnify  and hold harmless  Lender
     from any loss, damages, claims, causes of action that arises out of or from
     Borrower's breach of this Section 7.

          5.2 Lender  represents  and warrants to Borrower  that: (i) Lender has
     the full power and authority to enter into and perform this Agreement; (ii)
     the extension of the terms of the Notes contemplated in this Agreement does
     not  conflict  with or  constitute  a material  breach of, or  constitute a
     default under, any contract,  agreement or other instrument by which Lender
     is a party  or by  which  it is  bound;  and  (iii)  no  consent  from  any
     governmental entity is required to effectuate the transactions contemplated
     hereunder.  Lender hereby  agrees to indemnify  and hold


                              Exhibit 19 - page 2




     harmless  Borrower from any loss,  damages,  claims,  causes of action that
     arises out of or from Lender's breach of this Section 7.

     6.  Governing  Law.  This  Agreement  shall be governed by and construed in
accordance  with the laws of the  State of  California,  without  regard  to the
conflicts of laws principles of that or any other jurisdiction.

     7. Assignment;  Successors and Assigns.  Neither party shall have the right
or ability to assign,  transfer,  or  subcontract  this  Agreement  without  the
written  consent of the other party.  This Agreement shall bind and inure to the
benefit of the parties and their respective heirs, successors and assigns.

     8.   Counterparts.   This   Agreement  may  be  executed  in  one  or  more
counterparts,  each of which shall be deemed an original, and all taken together
shall constitute one and the same instrument.

     9. Miscellaneous.  This Agreement,  in connection with the Master Agreement
and  the  Notes,  contains  all  of the  agreements,  conditions,  promises  and
covenants  between the parties  with  respect to the subject  matter  hereof and
supersedes  all  prior  or   contemporaneous   agreements,   representations  or
understandings with respect to the subject matter hereof. This Agreement may not
be amended,  modified,  altered or  otherwise  changed in any respect  except by
written agreement signed by authorized representatives on behalf of Borrower and
Lender.  If any one or more of the provisions  contained in this Agreement shall
be invalid,  illegal or unenforceable in any respect, the validity,  legality or
enforce ability of the remaining  provisions  contained  herein shall not in any
way be affected or impaired.

     IN WITNESS WHEREOF,  duly executed  representatives  of each of the parties
hereto have executed and delivered this Agreement as of the Effective Date.

Borrower:                                             Lender:

MENDOCINO BREWING COMPANY, INC.,             UNITED BREWERIES OF AMERICA, INC.,
a California corporation                     a Delaware corporation


By: /s/ N. Mahadevan                         By: /s/ Anil Pisharody
   -------------------------                    -------------------------
Name: N. Mahadevan                           Name: Anil Pisharody
     -----------------------                      -----------------------
Title: Secretary                             Title: Secretary
      ----------------------                       ----------------------


                              Exhibit 19 - page 3




                                    Exhibit A

Note No.

     1.   Convertible  Note dated September 7, 1999, in the principal  amount of
          $280,064.88, maturity date March 6, 2001.

     2.   Convertible  Note dated October 21, 1999,  in the principal  amount of
          $25,000, maturity date April 20, 2001.

     3.   Convertible  Note dated November 12, 1999, in the principal  amount of
          $100,000, maturity date May 11, 2001.

     4.   Convertible  Note dated December 17, 1999, in the principal  amount of
          $150,000, maturity date June 16, 2001.

     5.   Convertible  Note dated December 31, 1999, in the principal  amount of
          $10,062, maturity date June 30, 2001.

     6.   Convertible  Note dated February 15, 2000, in the principal  amount of
          $100,000, maturity date August 15, 2001.

     7.   Convertible  Note dated February 16, 2000, in the principal  amount of
          $50,000, maturity date August 16, 2001.

     8.   Convertible  Note dated April 28,  2000,  in the  principal  amount of
          $151,317.59, maturity date October 27, 2001.

     9.   Convertible  Note dated September 11, 2000, in the principal amount of
          $300,000, maturity date March 10, 2002.

     10.  Convertible  Note dated September 30, 2000, in the principal amount of
          $19,938, maturity date March 29, 2002.

     11.  Convertible  Note dated December 31, 2000, in the principal  amount of
          $5,031, maturity date July 1, 2002.

     12.  Convertible  Note dated February 12, 2001, in the principal  amount of
          $317,677.94, maturity date August 11, 2002.

     13.  Convertible  Note  dated  July 1,  2001,  in the  principal  amount of
          $6,279.54, maturity date December 31, 2002.