Beautiful esthetics and perfect operation to grind the coffee bean. Except that my purchase was centered on a focused use linseed or similar. And there except large amount but not compatible with a family use and for short term it does not. Big surprise and strong disappointment over comments indicating that the hardware will meet my expectations. The knife comes with the product is U-shaped, so it rotates but does not touch the seeds (too small). Strangely on the photo of the packaging, this one has a different shape (a point down and the other up like that) and there, I think it should affect small seeds. Amazon was kind enough to send me the product, but the knife remains the same, so I went the whole. Damage and thank you Amazon.