How to clean an all-clad stainless steel pan I accidentally left one of my all-clad stainless steel saucepans on the stove &amp; the water in it boiled off... I used Bar Keeper's Friend(BKF) &amp; I was able to remove all the spots in the interior of the pan but the shiny finish on the exterior is yellowed now and BKF did not remove this stain.
It almost looks like when sterling silver starts to tarnish.
Any ideas?
Brillo/S.O.S pads (the real metal ones) and Barkeepers Friend.Recently I found a liquid Barkeepers Friend that works well also.

Use the Barkeepers Friend first or just trade off.  Brillo/S.O.S last.

There has never been crud or discoloration that has survived these two products. There have never been scratches with Brillo/S.O.S on my stainless steel both inside and out All Clad.

I think that Brillo/S.O.S works to really put a shine on the interior of the pan.  Eggs do just slide around.  Not too shabby.