I used my kitchen aid mixer last week to make brownies.  It worked well but after  the flat beater was washed it leaves gray pow der on hands and towels.  Now I ant use the machine.  What can be done.  My grandchildren want cookies and muffins!  I got the stand mixer to make bread and now wonder if the dough hook will have the same problem.  So disappointed. My ratings are based on the beater issue. Otherwise I love the mixer.