What to Look For in a Professional Espresso Machine You'll require a machine that has the capability to control the pre-infusion. This is important for the development of flavor. PID temperature control is a feature that many coffee experts search for in a professional espresso machine. If you plan to https://coffeee-uk22618.acidblog.net/61006981/indisputable-proof-that-you-need-buy-espresso-machine