Best Coffee Espresso Machine - Prosumer Models As the demand for espresso grows, so do the choices for consumers. Prosumer models of several commercial machines are currently available to customers. These heavier systems require more precision in the user's grinding, tamping, and extraction times, yet do most of the work. https://coffeeeuk77705.digitollblog.com/29609191/what-coffee-espresso-machines-is-your-next-big-obsession