Coffee Machine Espresso Espresso coffee is produced by pushing hot water under pressure through the grounds. There are many activities that go on behind the scenes to guarantee consistency in quality. Water temperature and pressure are the two main factors. A good espresso machine allows you to control these variables https://www-coffeee-uk29493.dsiblogger.com/62646995/what-to-say-about-best-budget-espresso-machine-to-your-mom