** PLEASE NOTE - Pre-order now with 10% discount. Delivery will start by mid-October.
Set your 54mm espresso machine free. Swap your standard 54mm basket for this stepped-down 45.5 mm basket and unlock a different extraction style without rebuilding your setup.
The tapered interior promotes a gentler, more forgiving flow profile that’s especially friendly to lighter roasts and imperfect puck prep. Laser-perforated holes deliver repeatable water distribution for cleaner, more even shots.
This basket is deeper than typical 54mm baskets and is therefore compatible with bottomless/naked portafilters only. To speed up your first dial-in, we include the accessories you’ll actually need for a complete 45.5mm workflow.
Reduced Flow = Low-Flow = 0.18 mm Hole Diameter, 2475 holes
Allows a coarser grind, easier to dial in, produces a thicker texture; better for medium/dark roasts.
Standard Flow = High-Flow = 0.28 mm Hole Diameter, 786 holes
Requires a finer grind, flows faster, yields higher clarity; better for light/medium roasts.
Tips: When switching 0.18 → 0.28, adjust the grind finer (usually 1–2 clicks). From 0.28 → 0.18, adjust coarser and monitor pressure/flow while fine-tuning the dose.
Compatibility Reminder：
- Bottomless-only fit (54mm); not for spouted/pressurized
- Check headspace with puck screen/spring; reduce dose if tight
- Rinse puck screen & spring after use; dry the basket
- Tamper Note: With Normcore spring-loaded tamper, use 45.5mm base only (a 53.3mm tamper will not fit this basket)
THE SET INCLUDES:
1 - Step-Down Portafilter Basket
1 - 45.5mm Dosing funnel
1 - 45.5mm 0.8mm Puck Screen
1 - Spring for the 54-45.5 Basket
200 - 45.5mm Filter paper
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