Coffee Machine Espresso Espresso coffee is produced by forcing hot water under pressure through grounds. There's a lot that goes on under the hood to ensure the same quality of coffee. Temperature and pressure of water are the two main components. You can regulate these variables using a high-quality espresso https://coffeee14613.iyublog.com/29344098/the-ultimate-glossary-of-terms-about-best-home-espresso-machine