The new MK4 Nitro Blade is built for true coffee enthusiasts. The C40 Nitro
Blade is a robust and high-performance manual coffee grinder with an advanced
burr set design. The selection of the burr material is the proud result of
dedicated research and development. We chose a very special high-alloyed, high
nitrogen stainless steel with a fine martensitic micro-crystal matrix as our
top-of-the-line burr material. We further refined the geometry and structure
of the Nitro Blade® burr to get the grind performance we were looking for and
the particle distribution which worked best with brewing freshly roasted
coffee. Stainless steel is the right choice to build a robust and food safe
coffee grinder.

That is why the C40 MK4 not only has a burr made of stainless steel, but also
a stainless-steel body, a stainless-steel axle, a stainless-steel crank and
stainless-steel micro ball bearings. For our Classic and Premium Wood
products, our craftsmen laminate a thin layer of beautiful wood onto the
stainless-steel body, before waxing and polishing it with meticulous
dedication. Our Classic and Special Coating products use a robust and sleek
powder coating – baked on at high temperature, not just painted on. Both body