The beater and whisk attachment HAVE TO GO.  That black stuff you see is a big problem.  These KA attachment pieces were tested at 445 ppm for LEAD.  Safety levels for children tops out at 90 ppm.        https://tamararubin.com/?s=kitchenaid                                                                     Serving cookies and cakes to the children?  Gee, this is oversigh is a bad mistake.