What to Look For in a Professional Espresso Machine You'll need a machine with the ability to control the pre-infusion. This is essential for the development of flavor. PID temperature control is an attribute that many coffee experts search for in an espresso machine that is professional. If you are https://coffeee-uk74572.fitnell.com/70581590/the-top-reasons-why-people-succeed-within-the-buy-espresso-machine-industry