Quick verdict
A bottomless portafilter shows you the underside of the coffee bed during a shot, so you can see uneven flow. Normcore's 54 mm model fits Breville/Sage machines, according to Normcore. It includes a 16–18 g basket and has a 304 stainless body. Normcore says spurting is common and points to preparation technique rather than a defect. It suits Breville 54 mm owners moving from pressurized to non-pressurized baskets.
Buy it if
- You have a Breville 54 mm machine and want to diagnose your puck prep.
- You're using, or moving to, non-pressurized baskets.
Skip it if
- You use pressurized baskets only.
- You want a dishwasher-safe portafilter.
- Best for
- Seeing channeling on Breville 54 mm machines and using non-pressurized baskets.
- Main compromise
- Normcore warns spurting is common while technique improves; hand wash only.
- Fits
- Breville/Sage 54 mm (Normcore)
- Basket
- 16–18 g included
- Material
- 304 stainless body; aluminum or walnut handle
Specifications
| Spec | Detail and source |
|---|---|
| Fits | Breville/Sage 54 mm (Normcore)Manufacturer: Normcore |
| Basket | 16–18 g includedManufacturer: Normcore |
| Material | 304 stainless body; aluminum or walnut handleManufacturer: Normcore |
| Care | No dishwasher, strong detergent or overnight soakingManufacturer: Normcore |
Compatibility
Normcore's page states 54 mm Breville/Sage fit but gives no model-by-model list (Normcore). The Amazon listing we linked is titled for the Barista Express, and a separate Normcore listing names the Bambino Plus BES500. If your Breville model isn't named, confirm with Normcore before buying.
Strengths and limitations
What stands out
- Shows channeling as it happens.
- 16–18 g basket included.
Limitations
- Spurting while you learn, as Normcore itself notes.
- Hand wash only.
Our recommendation
I'd recommend it to Breville 54 mm owners working on puck prep with a real espresso grinder.
Amazon listing: 54 mm bottomless portafilter, black, with 18 g basket
Sources
- Normcore Bottomless Portafilter with Handle (54mm fits Breville/Sage) — Normcore. Manufacturer. Accessed September 26, 2026.