zeroHero Rui Mini Portable Electric Coffee Grinder - USB Rechargeable & Adjustable Setting
zeroHero Portable Grinder — Redefining Portability
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Ultra-Compact & Travel-Ready
17cm folded height, 480g lightweight design — fits backpacks, perfect for travel and daily use. -
Revolutionary Space-Saving Design
Collapsible hopper with magnetic lid ensures secure storage and portability. -
Professional-Grade Grinding
38mm proprietary conical burrs with dual-stage grinding for uniform particles, clarity, and sweetness. -
Precision & Quiet Performance
Double-bearing stability, consistent grind, and quiet 68dB operation. -
Smart & Enduring Power
Auto-stop motor, 800mAh battery with 30 uses per charge, and USB-C fast charging.
Integrated Dual Bearings for Maximum Stability
- High concentricity, wobble-free grinding
- Low fine powder rate
- Consistently uniform particle size for a richer, balanced cup
68dB Low-Noise GrindingAs Quiet as a Conversation
Grind in office or shared spaces without disturbing others – ultra-considerate design for a peaceful environment.
Magnetic Bean Lid – No Spills, Even Upside Down
18g bean & grounds chamber – perfect for a single brew
