POWER OF ATTORNEY

Know all by these present, that the undersigned hereby constitutes and appoints
each of Matthew P. Blischak of Finch Therapeutics Group, Inc., and William
Michener and Lisa Folkerth of Ropes & Gray LLP, with full power of
substitution, signing individually, the undersigned's true and lawful
attorneys-in fact and agents to:

        (1)execute for and on behalf of the undersigned, in the
        undersigned's capacity as an officer, director or beneficial owner of
        more than 10% of a registered class of securities of Finch Therapeutics
        Group, Inc., Forms 3, 4, and 5 (including any amendments thereto),
        relating to the securities of Finch Therapeutics Group, Inc., in
        accordance with Section 16(a) of the Securities Exchange Act of 1934,
        as amended (the "Exchange Act") and the rules thereunder and a Form ID,
        Uniform Application for Access Codes to File on EDGAR;

        (2)do and perform any and all acts for and on behalf of the
        undersigned that may be necessary or desirable to execute such Forms 3,
        4, or 5, or Form ID (including any amendments thereto) and timely file
        such forms with the United States Securities and Exchange Commission
        and any stock exchange or similar authority; and

        (3)take any other action of any nature whatsoever in connection
        with the foregoing which, in the opinion of such attorney-in-fact, may
        be of benefit, in the best interest of, or legally required by, the
        undersigned, it being understood that the documents executed by such
        attorney-in-fact on behalf of the undersigned pursuant to this Power of
        Attorney shall be in such form and shall contain such terms and
        conditions as such attorney-in-fact may approve in such attorney-in-
        fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-in-fact's substitute or substitutes, shall lawfully do or cause
to be done by virtue of this power of attorney and the rights and powers herein
granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is Finch Therapeutics Group, Inc. assuming, any of the undersigned's
responsibilities to comply with Section 16 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until the earliest
to occur of (a) the undersigned is no longer required to file Forms 3, 4 and 5
with respect to the undersigned's holdings of and transactions in securities
issued by Finch Therapeutics Group, Inc., (b) revocation by the undersigned in
a signed writing delivered to the foregoing attorneys-in-fact or (c) as to any
attorney-in-fact individually, until such attorney-in-fact is no longer
employed by Finch Therapeutics Group, Inc. or Ropes & Gray LLP.

The undersigned has caused this Power of Attorney to be executed as of May 13,
2023.

/s/ Susan E. Graf
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Susan E. Graf