https://rasmussen-french.hubst....ack.net/why-do-so-ma
https://plantplant4.bravejourn....al.net/10-places-tha
What to Look For in a Professional Espresso Machine You'll need a machine with the ability to regulate the pre-infusion. This is crucial to develop flavor. PID temperature control is also an attribute that coffee experts are looking for in an espresso machine that is professional. If you plan on hiring baristas without much experience, you'll need an equipment that is simple to use