Hi Bob. I know you have hard water, whereas I have softened water.
As long as I add sufficient STPP and select a cycle that is long enough and hot enough, those stains are completely removed and the stainless steel pans are left gleaming. Finish Ultimate/Quantum never removes those stains even in the Miele on Intensive 75 ºC or in the PowerClean or KDS-18 etc.
I do a lot of cooking in stainless steel pans! One of the detergents I like using is Cascade Complete powder mixed with STPP (two-thirds Cascade, one-third STPP by weight). Of course, Cascade Fryer Boil Out also removes those stains but it struggles to shift starch.
Mark
As long as I add sufficient STPP and select a cycle that is long enough and hot enough, those stains are completely removed and the stainless steel pans are left gleaming. Finish Ultimate/Quantum never removes those stains even in the Miele on Intensive 75 ºC or in the PowerClean or KDS-18 etc.
I do a lot of cooking in stainless steel pans! One of the detergents I like using is Cascade Complete powder mixed with STPP (two-thirds Cascade, one-third STPP by weight). Of course, Cascade Fryer Boil Out also removes those stains but it struggles to shift starch.
Mark