What to Look For in a Professional Espresso Machine You'll need a machine that has the capability to control the pre-infusion. This is important for the development of flavor. PID temperature control is also a feature that many coffee experts look for in a professional espresso machine. If you are https://coffeeeuk87527.aioblogs.com/83370206/the-most-underrated-companies-to-keep-an-eye-on-in-the-buy-espresso-machine-industry