Gorilla Gear Burrs Coating?

Grinders are one of the keys to exceptional espresso. Discuss them here.

#1: Post by LewBK »

What is the black coating on gorilla gear burrs? Is it teflon? Anyone know what the material is?


#2: Post by mbbrew »

Most likely a Titanium Nitride coating, since those increase surface hardness. You can apply this coating in a number of different colors, SSP Redspeed is also Ti Nitride, as are in another application, bicycle chains that can be either gold or silver colored.