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 consistently high-quality coffee. Temperature and pressure of water are the two main factors. You can control these variables with a good espresso machine to https://www-coffeee-uk48660.answerblogs.com/30025081/a-brief-history-of-the-evolution-of-best-home-espresso-machine