Coffee and Espresso Machines Espresso machines utilize pressure to make water into finely ground and tamped beans. They produce a rich and delicious cup of coffee. Experts from the Good Housekeeping Institute recommend models that brew at the minimum pressure of 9 bars in order to achieve optimal extraction. Beware https://www.coffeee.uk/products/beko-cep5152b-espresso-machine-15-bar-1200-ml-black