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