What to Look For in a Professional Espresso Machine You'll need a machine that has the ability to regulate the pre-infusion. This is crucial to develop flavor. Many coffee experts also look for PID temperature control in a professional machine. If you plan to hire baristas with no experience, you'll https://wwwcoffeeeuk74477.blog-gold.com/36659205/15-surprising-stats-about-buy-espresso-machine