Coffee and Espresso Machines Espresso machines use pressure in order to push water into finely roasted and tamped beans. They produce a rich, delicious brew. Good Housekeeping Institute experts recommend models that can be brewed with a minimum of 9 bars to ensure a perfect extraction. Beware of companies that https://www.coffeee.uk/products/casabrews-20-bar-espresso-maker-with-milk-frother