Learn to make the best Espresso Martini with Grinders Coffee Sarah BakerFebruary 22, 2018, 4:30 amApril 20, 2020 Did someone say Espresso Quaren-tini? Grinders Coffee Roasters shares its take on the classic espresso martini. You can now shop online for the Grinders X-tract to make the perfect espresso martini at home!