Evidence-based accessory dimensions and step-by-step extraction troubleshooting.
Independent Educational Notice: Breville officially specifies 54mm nominal portafilter collars and 53.0mm stock tampers. Dimensions of 53.8mm (basket inner rim), 53.3mm–53.4mm (precision tampers), and 53.35mm (puck screens) are third-party aftermarket recommendations and empirical measurements, NOT manufacturer-certified specifications. This tool does not guarantee physical fit or shot outcomes due to manufacturing tolerances (±0.2mm) and basket variations. Always verify basket diameter with calipers before purchasing custom accessories. Not affiliated with, authorized, or endorsed by Breville USA or Breville Pty Ltd.
Factory tamper is 53.0mm (leaves ~0.8mm edge gap). 53.3mm–53.4mm is an aftermarket recommendation, not factory-certified. Do NOT use 54.0mm tampers.
Puck Screen (Aftermarket Rec)
53.35mm diameter (0.8mm)
Aftermarket size. Exposed shower center screw requires coin test before dosing >18g with a puck screen.
Target Dose & Depth
16.0g – 18.0g
24mm standard double basket depth
⚠️ Basket Compatibility Notice:
Compatible with stock unpressurized (single-wall) double basket and precision replacement baskets (e.g., IMS B62.52TH24E). NOT recommended for dual-wall pressurized baskets with stepped bottoms.