Coffee Machine Espresso Espresso coffee is produced by pushing hot water under pressure through the grounds. There are many things that go on behind the scenes to guarantee consistent quality. Pressure and temperature of water are the two main factors. A good espresso machine allows you to regulate these variables https://www-coffeee-uk91567.canariblogs.com/10-essentials-regarding-best-budget-espresso-machine-you-didn-t-learn-in-the-classroom-45116557