What to Look For in a Professional Espresso Machine You'll need a machine with the ability to control the pre-infusion. This is important for developing flavor. Many coffee experts also look for PID temperature control in a professional machine. If you plan to hire baristas who have no experience, you'll https://www-coffeee-uk86269.slypage.com/30315806/unquestionable-evidence-that-you-need-buy-espresso-machine