What to Look For in a Professional Espresso Machine You'll want a machine that can control pre-infusion, which is important to develop aroma and flavor. PID temperature control is also a feature that many coffee experts look for in a professional espresso machine. If you plan on hiring baristas who https://wwwcoffeeeuk07003.theobloggers.com/35922233/is-tech-making-buy-espresso-machine-better-or-worse