I bought this a few years ago and noticed the beater had black and white spots once I cleaned it in the dish washer.  I use to give it a second hand cleaning to keep using it for a few years and decided only to wash it by hand. Last time I used it, my husband put it again in the dish washer without knowing and it came out completely black. I washed it by hand but the black dust kept coming off.  I don't want to use it anymore since this powder could be transferred to the mix (cookies for my son!!). I checked in this website to buy another one but noticed this is not an isolated case.  I'm not buying this since it seems all of them has the same problem.  I'm glad I read all this reviews before purchasing another of this beaters with dish washer safe false advertisement.  How is this getting approved by the Kitchen Aid QA department?