I received this as part of an attachment set that came with the mixer my family bought me for Christmas. I use my mixer a lot with this attachment but have noticed the last couple times that it has left gray streaks in my food and that the paint is wearing off of the bottom and sides of the beater. This beater did a great job but now ruins everything I make with it. I have read all of the instructions and cleaning warnings but without a doubt the gray streaks are coming from this beater.