Coffee And Espresso Machines Espresso machines make use of pressure to push water through finely ground and tamped coffee beans. They make a rich and delicious cup of coffee. Good Housekeeping Institute experts recommend models that can be brewed with 9 bars or less to ensure the best extraction. Beware https://www.coffeee.uk/products/cozeemax-20bar-espresso-machine-with-milk-frother