What to Look For in a Professional Espresso Machine You'll need a machine that can be controlled the pre-infusion, which is essential for developing flavor and aroma. PID temperature control is also a feature that many coffee experts look for in a professional espresso machine. If you are planning to https://coffeeeuk33029.bloggosite.com/36394157/11-creative-ways-to-write-about-buy-espresso-machine