Metal dust inside Niche Zero

Grinders are one of the keys to exceptional espresso. Discuss them here.
Posts: 4
Joined: 3 years ago

#1: Post by whatmatrix »


I've been using Niche Zero for a few years. I just tried to clean the unit and found out that the interior metal wall is scratched. It looks like the burr housing is in contact with the interior metal wall and ground each other. I tried to clean the area with kitchen towels. The kitchen towels look like the area was thickly covered with black metal dust.

I'm a bit freaked out and I'm not sure if I can continue to use it.

Here are some pictures.

Anyone has similar experiences? Please let me know.

User avatar
Posts: 4725
Joined: 18 years ago

#2: Post by cafeIKE »

IMO, it's just fines.

Is this the first cleaning?