What to Look For in a Professional Espresso Machine You'll want a machine which has the ability to control the pre-infusion, which is essential for developing aroma and flavor. PID temperature control is a feature that many coffee experts look for in a professional espresso machine. If you're planning on https://www-coffeee-uk22418.activosblog.com/29196723/are-you-responsible-for-an-buy-espresso-machine-budget-12-ways-to-spend-your-money