G-Flow Active Slow-Feed System: Motor-Controlled Stability for Cleaner Grinding

Transforming grinder feeding from “random gravity” into “precision-controlled engineering.”

What Is G-Flow?

G-Flow is an active slow-feed system for coffee grinders — not a passive gravity hopper.
Inside it is a motor-driven feed disc that rotates at a controlled speed, grabbing coffee beans and pushing them into:

— A mechanically engineered feed path optimized for stable, low-pressure delivery —

This system feeds beans into the grinder in a consistent, pressure-free, predictable rhythm, dramatically reducing fines and improving extraction repeatability.

Why Use an Active Motor Instead of Gravity?

1. Gravity Is Random; Motor Control Is Predictable

Traditional hoppers rely on uncontrolled mass flow — more beans = more pressure = more fines.
G-Flow provides a constant, engineered push instead of unpredictable downward force.

2. Feeding Speed No Longer Changes as Bean Level Drops

Empty or full, the feed rhythm remains identical.

3. True Micro-Dosing Control

The amount of beans delivered per rotation is fixed and measurable — impossible with gravity alone.

Engineering Structure

1. Motor-Driven Feed Disc

The disc contains structured grooves that carry beans forward as it rotates, ensuring stable, single-bean or small-batch output.

2. Optimized Mechanical Feed Path

• No stacking
• No compression
• No multi-bean impact on the burrs

3. Burr Load Stabilization

Stable input → stable cutting → stable particle formation.
This improves repeatability across all brews.

Brewing Benefits

• Significantly fewer fines
• Cleaner cups and higher clarity
• Smoother drawdowns with less clogging
• Consistent extraction curves
• Turns grinding into a repeatable engineering process

Connection & Adapters

G-Flow connects using dedicated grinder adapters.
Official adapters will be available on 2026-01-01.

Who Is It For?

• Brewers seeking consistency and clarity
• Professionals analyzing extraction curves
• Cafés needing repeatable workflows
• Coffee researchers and experimenters

Conclusion

G-Flow is not a hopper — it is an active, motor-driven feeding system designed to stabilize grinder input.
By controlling both rhythm and pressure, it reduces fines at the source and elevates the repeatability of every brew.

Learn more: vihi.design ｜ Contact: support@vihi.design