Comandante - C40 Mk4 Nitro Blade - Black

BURR

The burr material and design is the proud result of years of dedicated research and development at Comandante®’s onsite coffee lab. Nitro Blade® is unique, using a high-alloyed, high-nitrogen stainless steel with a fine martensitic micro-crystal matrix.

Burr Geometry has been optimised to achieve excellent Bean Thruput with a reduced Crank Torque and at the same time deliver a refined Particle Size Distribution for best brewing results.

GRIND ADJUSTMENT

Comandante click system gives you full control for any brewing method and locks your preferred grind setting into place, helping you get the very best out of your roasted coffee and repeat the results again and again. This world class grind performance has made Nitro Blade the weapon of choice for true coffee enthusiasts around the globe, from home baristas to World Brewers Cup champions.

DESIGN

Stainless steel is the right choice to build a robust and food safe coffee grinder. That is why not only the burr is made of stainless steel, but also the body, axle, crank and micro ball bearings. Comandante products are aluminium free.

Where polymers can be used to improve performance, Comandante uses BPA-free high-performance polymers that meet the strictest food-safety standards. These materials are engineered to endure years of heavy use.

Comandante loves natural wood. The solid oak handles, produced by friends in Germany’s Black Forest, are both wonderfully ergonomic and beautiful to look at thanks to oak’s unique grain structure.The Classic and Special Coating models use a robust and sleek powder coating – baked on at high temperature, not just painted on. 

Nitro Blade® Burr

"Back in 2005, I started my small specialty coffee roastery – drawn in by the incredible flavors and outstanding cup qualities that specialty coffee had to offer. Those early years were filled with roasting, cupping, and traveling to connect directly with producers at origin.

Roasting and brewing in the field was manageable. But precise grinding – the key to truly tasting and deciding on a coffee – was the real challenge. None of the hand grinders I tried gave me the clarity or consistency needed. I kept dreaming of EK43-level performance in a compact format I could carry deep into the mountains. I just needed a grind I could trust.

Most conical burrs at the time were designed for electric grinders. Nobody had really considered what a manually operated precision burr would require: superb grind quality, smooth torque, comfortable ergonomics, clean particle distribution – and ultimately, absolute taste clarity.

Then came Cup of Excellence. It shifted the coffee world’s focus toward extraordinary cup quality and flavor expression. The bar was rising. This new era of specialty coffee needed a grinder with a true specialty burr to match.

So I started building one. And after years of prototyping, testing, and investing in serious lab equipment, it finally came together. In 2015, I launched my first Nitro Blade® based hand grinder: the Comandante® C40 Mk3. I handed a few early prototypes to friends – who soon went on to win major brew competitions. Nitro Blade® quickly earned its reputation as the Original Game Changer.

Ten years later, Nitro Blade® is still the gold standard. Built to last, engineered for clarity, and trusted by champions and home brewers alike.

I’m so glad you’ve got one in your hands now. Welcome to the journey, and to a community that truly loves great coffee and fine craftsmanship. Enjoy every cup!"

– Bernd Braune, Founder

Nitro Rex® – steel like no other

Nitro Rex® is more than stainless steel — it is an achievement of material engineering and craftsmanship. It contains over 17% chromium and precisely balanced amounts of vanadium, molybdenum, and other valuable micro-alloys, giving it outstanding corrosion resistance, hardness, and wear resistance. Its complex remelting process creates a fine, homogeneous structure and a silver-white surface that is not only aesthetically striking but also eliminates the need for coatings. Nitro Rex® stays exactly as it is made: robust, durable, and completely flavor-neutral — allowing coffee to retain its full character.

Nitro Rex® forms the heart of the grinders. It ensures consistent precision and durability, appreciated worldwide — whether grinding ultra-fine espresso or coarse filter coffee. Every COMANDANTE grinder is created for people who refuse to compromise and who share a passion for quality, craftsmanship, and perfect coffee.

QTP® – high-performance techno-polymer

Not all plastics are the same. At Comandante®, advanced materials are chosen with purpose. QTP® is a high-performance techno-polymer — a long-chain polymer matrix reinforced with quartz nanoparticles. It looks and feels like ceramic, yet offers the strength of a super-composite. Designed for durability and precision, it is also food-safe and water-resistant. Quietly cutting-edge, built to perform.

C40 CLICK ZERO

SCOPE OF DELIVERY: 

• 1 × Crank with oak knob, lacquered black*
• 1 × Polymer Bean Jar, transparent
• 1 × Glass Bean Jar, dark, with lid
• 1 × Comandante® Wrist Band, small
• 1 × Merino wool felt mat

*Due to the natural products used, mills may differ individually from the pictures.

Every C40 MK4 comes with one brown glass Bean Jar and one clear polymer-glass Bean Jar. Both are super easy to clean and hold around 40g of roasted coffee beans. Weighing in at just over 600g, the C40’s compact size and robust nature means that whether you’re at home or off on an adventure, the world’s best manual grinder is your loyal companion. 

Made in Germany.