The E80 Supreme comes with 80 millimeter flat steel burrs engineered for impressive uniformity at the finest settings. These redesigned 80mm burrs are capable of grinding at 6–7 grams per second, producing a double espresso yield in around 3 seconds and cementing the E80 as the fastest espresso grinder in its class. An active cooling system powered by two fans regulates the environment in the grind chamber, reducing thermal expansion that might otherwise interfere with grind size.