The Mahlkönig E80 Supreme comes with 80 millimeter flat steel burrs engineered for impressive uniformity at the finest settings, following in the footsteps of the company’s Peak espresso grinder that made waves at coffee events all the way back in 2015. These redesigned 80mm burrs are capable of grinding at 6 to 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. Even at the elevated RPMs required for such speedy grinding, the internal temperature of the E80, including its burrs, is under control, which is an impactful update from the Peak. 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. The peak has been raised. Again.