Precision Meets Consistency
The Normcore Blind Shaker 58 mm (Dosing Cup) was designed to solve one of the biggest coffee problems — uneven grind distribution.
By shaking your grounds for a few seconds, the particles mix evenly, reducing channeling in espresso and improving bloom and flow in pour-over brews.
Made from matte black anodized aluminum, it’s both light and sturdy, with an integrated magnetic base that locks onto your 58 mm portafilter for espresso or holds steady on any flat surface when preparing filter brews.
When not shaking, it functions perfectly as a magnetic dosing cup or funnel, letting you transfer grinds cleanly from your grinder to your portafilter or filter dripper.
You can even stack multiple cups magnetically for compact storage.
Key Benefits
Even grind distribution: For espresso or filter brewing — fewer channels, better extraction
Dual purpose: Works as a blind shaker and a dosing funnel
Magnetic base: Securely attaches to your portafilter or sits flat for filter prep
Matte black anodized aluminum: Sleek, durable, and scratch-resistant
Anti-static interior: Keeps fines from sticking to the walls
Stackable design: Save space and organize your setup
Cleaner workflow: Reduce mess and waste when dosing or transferring grounds
Perfect size: Optimized for 58 mm portafilters and compatible with most grinders and brewers
FAQ
Can I use it for filter coffee too?
Yes! The Blind Shaker works perfectly for pour-over, Aeropress, and other filter brews — helping you get an even extraction by breaking up clumps and distributing fines.
What’s the difference between a blind shaker and a dosing cup?
A blind shaker mixes grounds evenly before brewing, while a dosing cup is mainly for transferring.
This hybrid design does both.
Can it attach magnetically to a portafilter?
Yes. The magnetic base keeps it securely in place on 58 mm portafilters.
Does shaking really make a difference?
Absolutely. Even particle distribution improves consistency in both espresso pressure and filter flow.
Can I stack multiple cups?
Yes — the magnetic design allows stable stacking for neat storage.
Where can I learn more about this workflow?
YOU CAN READ THE FULL ARTICLE HERE:
👉 Blind Shaker Espresso: Even Fines, Fewer Channels, Better Shots
Technical Details
Feature | Specification |
|---|---|
Brand | Normcore |
Model | Blind Shaker 58 mm (Dosing Cup) |
Material | Anodized Aluminum |
Color | Matte Black |
Diameter | 58 mm |
Magnetic | Yes |
Anti-Static | Yes |
Use for Espresso & Filter | Yes |
Dual Use (Shaker/Funnel) | Yes |
Stackable | Yes |
Compatibility | Espresso (E61, ECM, Sage, Rocket) & Filter brewers (V60, Kalita, Aeropress) |










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