Coffee and Espresso Machines Espresso machines use pressure in order to force water into finely ground and tamped beans. They create a rich and flavorful brew. Experts at the Good Housekeeping Institute recommend models that brew with a minimum pressure of 9 bars to ensure the highest extraction. Beware of https://www.coffeee.uk/products/de-longhi-specialista-prestigio-espresso-cappuccino-machine-black-ec9355-bm