Mazzer Major / Major E Flat Burrs – 83mm OEM Restore precision grinding to your Mazzer Major or Major E espresso grinder with these genuine OEM flat burrs. Worn burrs are the most common cause of inconsistent grind particle size, uneven extraction, and declining espresso quality. Replacing them with genuine Mazzer burrs restores the grind accuracy your machine was built to deliver. Specifications Outer diameter (OD): 83mm Inner diameter (ID): 49mm Thickness: 9.6mm Holes: 3 Rotation: Right-hand (RH) Type: Flat burrs Compatible Models Mazzer Major Mazzer Major E When to Replace Your Burrs Grind consistency has become uneven or unpredictable Espresso extraction time has changed without adjusting the grind setting Grinder is producing excessive fines or channelling is increasing Noticeable drop in espresso quality despite correct settings You have reached the recommended burr replacement interval Frequently Asked Questions Are these genuine Mazzer OEM burrs? Yes, these are genuine OEM Mazzer replacement flat burrs for the Major and Major E grinders. How often should I replace my Mazzer Major burrs? Mazzer recommends replacing burrs based on kg of coffee ground. For the Major, this is typically every 800–1,000kg depending on usage and coffee type. Signs of wear will appear before this threshold in high-volume environments. Can I install these myself? Burr replacement on the Mazzer Major is straightforward for those familiar with grinder maintenance. Ensure the grinder is unplugged before starting. If you need assistance, our Sydney-based technicians can help — contact us to arrange a service.