Coffee Machine Espresso Espresso coffee is produced by forcing hot water under pressure into the grounds. There's a lot that goes under the hood to ensure consistent quality. Pressure and temperature of water are the two main elements. A good espresso machine allows you to manage these variables for consistency https://coffeee33158.blogzag.com/74128309/what-you-should-be-focusing-on-improving-best-budget-espresso-machine