I'm thinking this goes back to Amazon. I'm thinking the alternative would be to send it to a machine shop for grinding, which would be significantly expensive given all the angles. Here are two more pics. The other side of this griddle is ribbed, which would be quite difficult to grind. The surface is.....no kidding....about the texture of 40 grit sandpaper. This thing would damage a steel spatula. There ain't no way it could be 'seasoned' smooth.