Best Coffee Espresso Machine - Prosumer Models As the demand for espresso grows, as do the options for consumers. Prosumer models of many high-end commercial machines currently available to consumers. These heavier systems require greater precision in the user's grinding, tamping and extraction times, but do most of the work. https://coffeee78434.webdesign96.com/30349467/the-top-coffee-espresso-machines-that-gurus-use-3-things