Coffee and Espresso Machines Espresso machines make use of pressure to force water through finely ground and tamped coffee beans. They create a rich, flavorful brew. Experts from the Good Housekeeping Institute recommend models that brew with the minimum pressure of 9 bars to get the best extraction. Beware of https://coffeee35685.ampedpages.com/this-is-the-complete-guide-to-coffee-machines-espresso-57069154