Coffee’s complex flavors start fading the moment beans are ground. While serious coffee drinkers know this, most portable grinders sacrifice precision for size—until now.
The G-11 Type-C coffee grinder fixes this with:
✔ Lab-grade grind consistency (15 precise settings)
✔ Ceramic burrs that run cooler (22% more aroma retention)
✔ USB-C charging (works with your phone charger)
✔ Smaller than a soda can (298g)
Let’s break down why this changes everything.

Engineering Breakdown: What Makes the G-11 Type-C coffee grinder Unique
1. Precision Grinding Engine
- 15 Micro-Adjustable Settings
- Espresso (1-3): Powder-fine, ideal for pressure extraction
- Pour Over (4-6): Granulated sugar texture
- French Press (7-9): Coarse sea salt grains
- Cold Brew (10+): Chunky, even particles
- Zero Shift Dial
Unlike cheaper grinders where settings drift, the G-11’s mechanical detent system locks your selection in place—even when traveling.
2. Ceramic Burr Advantage
Why coffee pros prefer ceramic over metal:
G-11’s Ceramic Burrs | Standard Steel Burrs | |
---|---|---|
Heat Transfer | Stays below 40°C | Reaches 60°C+ |
Flavor Impact | Preserves delicate acids | Can mute fruity notes |
Durability | 100K+ grinds before servicing | 50K grinds typical |
Cleaning | Wipes clean—no oil retention | Requires frequent brushing |
Real-world difference:
When testing Ethiopian Yirgacheffe beans:
- Ceramic: Clear jasmine/honey notes
- Steel: 15% less aromatic complexity
3. Modern Power System
- 2000mAh Battery → 30+ cups per charge
- USB-C PD Support → 0-100% in 55 mins (using a 20W charger)
- Battery Protection → Auto-shutdown if overheated
Pro Tip: The G-11 works while charging—perfect for back-to-back brewing.
4. Thoughtful Design
- 298g Weight (lighter than most travel mugs)
- Removable 25g Catch Cup (dose directly into portafilters)
- 65dB Noise Level (quieter than an electric toothbrush)
Who Needs the G-11 Type-C coffee grinder ?
✅ Travelers – Fits in carry-ons, works with power banks
✅ Office Workers – No more stale breakroom coffee
✅ Gifters – Pairs perfectly with premium beans
✅ Flavor Chasers – Unlocks subtle notes in light roasts
Limitations to Know
- Not ideal for grinding >30g at once (due to compact size)
- Ceramic burrs cost more to manufacture (reflected in price)
Final Call: Is the G-11 Worth It?
If you want true grind consistency without being tethered to an outlet, this is arguably the most advanced portable grinder under $150. The ceramic burrs alone justify the upgrade for serious coffee drinkers.
Limited Deal: First 50 buyers get a free airtight coffee tube ($19 value).
Question: What’s your biggest grind-related frustration when traveling? Let’s discuss below!
Type-C coffee grinder review

USB-C Coffee Grinder G-11
Take control of your coffee with the G-11 Portable Electric Coffee Grinder—a versatile, precision grinder designed for coffee enthusiasts who demand consistency and convenience. Whether you’re brewing at home, in the office, or on a camping trip, the G-11 ensures that every cup of coffee is brewed to perfection.