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