Coffee and Espresso Machines Espresso machines make use of pressure to push water through finely ground and tamped coffee beans. They make a rich and delicious brew. Experts from the Good Housekeeping Institute recommend models that brew with the minimum pressure of 9 bars to get the most efficient extraction. https://www.coffeee.uk/products/de-longhi-stilosa-ec260-cr-manual-espresso-machine-1l