Coffee and Espresso Machines Espresso machines use pressure in order to press water into finely crushed and tamped beans. They produce a rich, tasty brew. Experts at the Good Housekeeping Institute recommend models that brew with a minimum pressure of 9 bars to ensure the highest extraction. Beware of manufacturers https://www.coffeee.uk/products/tassimo-my-way-2-coffee-machine-over-70-drinks