Coffee and Espresso Machines Espresso machines use pressure to force water through finely ground and tamped coffee beans. They produce a rich, delicious brew. Experts from the Good Housekeeping Institute recommend models that brew with the minimum pressure of 9 bars in order to get the most efficient extraction. Beware https://www.coffeee.uk/products/de-longhi-vintage-icona-espresso-cappuccino-machine-cream-1-4l