Flat Black Coffee Lower Mills Cafe

Coffee Shop
1170 Washington St (at Dorchester Ave)
Boston, MA 02124
6:30am - 4:00pm
6:30am - 4:00pm
6:30am - 4:00pm
6:30am - 4:00pm
6:30am - 4:00pm
6:30am - 4:00pm
6:30am - 3:00pm


  • Brewing a Sulewese, bold and earthy, yum!
  • Roasting in house as we speak. Smells awesome.
  • Get the morning glory muffin and the Timor dark roast. Delicious.
  • Flat black is brewing an african suite today, rwanda,ethiopia, and kenya aa. What will I choose??????
  • The chocolate biscotti will blow your mind ! Pairs very well with a latte.
  • Best lattes around!
  • Not convinced they are true coffee roasters. A bit disjointed and my chai was terrible. Male employee was most unpleasant. Messed up my order then demanded I pay an up charge for what they forgot.
  • The long flat black we had was delicious! Great atmosphere and quality of espresso
  • This is the place to go for real coffee. Try the flat white, it's great.
  • Open 7-4 on Christmas eve. Best Egg Nog lattes in #Boston