What to Look For in a Professional Espresso Machine You'll want a machine that has the ability to control the pre-infusion, which is essential to develop flavor and aroma. PID temperature control is an option that many coffee experts look for in an espresso machine that is professional. If you're https://coffeeeuk50470.blog-eye.com/29942240/buzzwords-de-buzzed-10-different-ways-to-say-buy-espresso-machine