Since I learned to love cooking as a young person, I was always envious of my Aunt's K5A mixer. Finally I was able to procure my own and love the machine and general Kitchenaid quality. WHY o WHY is this flat beater of such poor quality. Certainly, it works fine, but when first I noted the black buildup on it after washing, well I was greatly disappointed, to say the least. After scrubbing and immediately drying this item I convinced myself it wasnt toxic and could be used, grudgingly. This event caused me to survey my other KitchenAid products to search for hidden flaws or defects. It amazed me that such a fine mixer would come with such a sub-standard part. Ceertainly not dishwasher safe, and requires immediate drying!