Coffee and Espresso Machines Espresso machines make use of pressure to force water through finely ground and tamped coffee beans. They create a rich and delicious cup of coffee. Experts from the Good Housekeeping Institute recommend models that brew with the minimum pressure of 9 bars to ensure the highest https://coffeeeuk99686.articlesblogger.com/52846221/a-the-complete-guide-to-coffee-machines-espresso-from-start-to-finish