Coffee and Espresso Machines Espresso machines use pressure to force water through finely ground and tamped coffee beans. They create a rich, tasty brew. Good Housekeeping Institute experts recommend models that use 9 bars or less to ensure an ideal extraction. Beware of manufacturers who tout greater pressure than what https://coffeeeuk16314.isblog.net/what-coffee-machines-espresso-experts-want-you-to-know-46999285