Home Espresso Machines Espresso machines uses hot water under pressure to push through coffee grounds. Once you've perfected the conditions for brewing, it's impossible to go back. The most efficient machines have reservoirs and/or a connection to a constant supply of water. They also have a professional-style milk wand for https://www.coffeee.uk/products/gaggia-manual-espresso-cappuccino-machine-with-magnet-valve