Flat Black Coffee Flat Black Coffee 260 Franklin St Boston Massachusetts 02110 617-261-1440 About Flat Black Coffee Flat Black Coffee is a coffee and breakfast spot for those in Milton, MA and surrounding areas. No Records FoundSorry, no records were found. Please adjust your search criteria and try again. Google Map Not LoadedSorry, unable to load Google Maps API. Get Directions Upgrade your business listing to premium! Includes: Your own logo and imagesWeb addressEmail addressSocial mediaCustom textAnd more! Leave a Review Cancel replyYour email address will not be published. Required fields are marked *Review text Select a rating Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ