Coffee and Espresso Machines Espresso machines use pressure to force water into finely ground and tamped beans. They produce a rich and delicious cup of coffee. Experts at the Good Housekeeping Institute recommend models that brew at the minimum pressure of 9 bars to ensure the highest extraction. Beware of https://coffeee-uk12402.digiblogbox.com/55082143/learn-about-coffee-machines-espresso-while-you-work-from-at-home