Why we need to replace the burrs?
With prolonged use of a coffee grinder, its core components—the burrs—gradually lose their sharpness and begin to dull visibly. In some cases, chipping along the edges may also occur. This is particularly common in commercial espresso grinders, where burrs are subjected to heavy grinding loads, frequent cleaning, and repeated recalibration. Common wear issues include erosion in the triangular zone, coating...