How to Choose a Commercial Espresso Machine Commercial espresso machines are expensive, and a good one requires regular maintenance and service by a qualified technician. These machines may also require a change in the cafe's plumbing to meet their water needs. A commercial espresso machine can serve multiple customers simultaneously https://coffeee-uk72401.webbuzzfeed.com/30350143/a-peek-at-the-secrets-of-coffee-espresso-machine