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They didn't claim to be first conical burr grinder. The claimed innovation is in the cylindrical design.

Their claim is something else, though: "The first cylindrical burr coffee grinder"

This is cylindrical, which the author purports to be different

Tangental: I have a 3 yr old Niche Zero, they are excellent - but they are not first conical. They used the burr from another famous grinder (I was more into all this shit but don't remember now)

They use Mazzer burrs, a classic!

Niche made the single dose grinder mainstream though and deserve a ton of credit for that