How to Choose a Commercial Espresso Machine Commercial espresso machines can be costly and require regular maintenance and service by a skilled technician. They may also require reworking of the cafe's plumbing to meet water requirements. Commercial espresso machines have multiple brewing groups and can serve many customers at once. https://wwwcoffeeeuk79363.rimmablog.com/29370485/how-to-outsmart-your-boss-on-bean-to-cup-espresso-machine