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Question:

Does anyone know how to remove black build up from aluminum frying pans caused by phosphate free detergent?

Lately, I have been noticing that my dishwasher has not been cleaning the way it used toIt leaves white film on all my black plastic utensils, my glassware has a foggy film over it, and worst of all my expensive aluminum cookware is laden with black build upAfter doing some online research, I learned that the reason for this is the removal of phosphates from dishwasher detergentI've scrubbed my frying pans and cannot seem to rid them of this nasty black build upI'm afraid of trying heavy duty cleaners for fear of ruining my pans even moreIf anyone knows of a safe way to clean my pans and return them to their original state it would be much appreciated!

Answer:

That film usually isn't caused by a lack of phosphatesOften that white film is undissolved detergent or etchingTry removing the film with white vinegarIf the vinegar removes the white marks, great! Run the pans through your dishwasher along with two cups of vinegar (no detergent)If the vinegar doesn't remove the film, nothing will remove the film because it isn't a film at all.it's tiny scratchesPowdered dishwasher detergent and tablets usually contain silicate (sand).and your pans have been sandblastedThe solution? Buy new pans and switch to liquid dishwasher detergentOr wash your pans by handI never wash any metal pan in the dishwasher, myself-

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