Coffee and Espresso Machines Espresso machines use pressure to force water into finely ground and tamped beans. They make a rich and delicious brew. Good Housekeeping Institute experts recommend models that are brewed at 9 bars or less to ensure the best extraction. Beware of manufacturers who claim to use https://www.coffeee.uk/products/de-longhi-nespresso-gran-lattissima-en650-b-1400-w-black