Coffee and Espresso Machines Espresso machines use pressure to force water into finely ground and tamped beans. They make a rich, tasty 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 of https://coffeeeuk03002.review-blogger.com/52169496/espresso-machine-explained-in-fewer-than-140-characters