Mazzer Mini Electronic A & B Grinder Burr Set 64mm (189D)

Genuine Mazzer replacement burrs for the Mini Electronic A, Mini Electronic B and Mini Filter. These are the 64mm flat tempered-steel grinding discs Mazzer specifies as part number 189D — the same burrs your grinder shipped with, not a look-alike substitute. Burrs are a wear part. As the cutting edges dull, grind quality drifts before it fails outright: shots start channelling, the grind setting creeps finer to hit the same dose time, fines increase and the cup loses clarity and sweetness. A fresh set restores the grinder to the way it ground when it was new — usually a bigger improvement to the cup than anything else you can do for the money. Features Genuine Mazzer part: OEM 189D discs, machined to Mazzer's own tolerances so they seat correctly and hold alignment in the burr carrier. Aftermarket copies vary in flatness and hardness, which shows up as uneven particle distribution. 64mm flat tempered steel: The 64mm flat format Mazzer built the Mini platform around — a proven balance of grind quality, heat management and burr life for espresso. Pre-seasoned: The discs arrive already seasoned, so there is no need to sacrifice pounds of coffee breaking them in. Install, dial in, and the grind is stable from the first few shots. Roughly 660 lb service life: Rated for approximately 660 lbs (300 kg) of coffee before replacement is recommended. Track your throughput and swap on schedule rather than waiting for the cup to tell you. Sold as a matched pair: One complete set — both the fixed and rotating disc. Always replace burrs in pairs; mixing a new disc with a worn one defeats the point. Compatibility Mazzer Mini Electronic A Mazzer Mini Electronic B Mazzer Mini Filter If you are unsure which burr set your grinder takes, check the part number stamped on your existing discs or send us your grinder's model and serial number and we will confirm before you order.