What to Look For in a Professional Espresso Machine You'll want a machine which can be controlled the pre-infusion, which is essential for developing aroma and flavor. Many coffee experts look for PID temperature control in an industrial machine. If you plan on hiring baristas without much experience, you'll need https://www-coffeee-uk67327.blogunok.com/30083323/15-incredible-stats-about-buy-espresso-machine