What to Look For in a Professional Espresso Machine You'll require a machine that has the ability to control the pre-infusion. This is important to develop flavor. PID temperature control is also a feature that many coffee experts look for in a professional espresso machine. If you plan to hire https://wwwcoffeeeuk57769.blogzet.com/one-buy-espresso-machine-success-story-you-ll-never-imagine-44661107