Coffee And Espresso Machines Espresso machines make use of pressure to press water into finely crushed and tamped beans. They make a rich, delicious brew. Experts from the Good Housekeeping Institute recommend models that brew at the minimum pressure of 9 bars to get the most efficient extraction. Beware of https://www.coffeee.uk/products/de-longhi-traditional-espresso-machine-red-1l