If You Are Like Me And Have Pot's That Have Copper Bottoms On Them And Have Ever Tryed To Clean Them They Are A Hassle. Well, Here Is The Solution For You. Just Put Ketup Directly On The Bottom And Let Them Sit Fot A Good 30 Min. Then Just Use A Paper Towl To Rub The Ketup And The Copper Bottom Will Come Claen.