I also have a white porcelain sink and when it gets the black stains from pots and pans I use Bar Keepers Friend as well. It is truly the most amazing product. A friend of mine gets charcoal stains all over her white sink as her husband often cooks outside and then brings the pot in (he's from another country) - Bar Keeper's Friend takes it all off.
The works sold at dollar stores it is strong! Can't be mixed with other chemicals just pull stopper up and put in your sink it is the tub one but any of them work! I use it for stains in coffee mugs and even on white clothes better then bleach by far!
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Request: Whitening Porcelain Sinks
Archived on 12/26/2007
If you want your porcelain sink to be white again, just fill it with warm water and about 1 cup of bleach. Let it stay in there about 15 minutes and rinse.
By Robin
Answers:
RE: Whitening Porcelain Sinks
I keep my white porcelain sinks sparkling by using a product called Bar Keepers Friend. It looks like a can of comet, but it takes out every stain and keeps my sink looking like new! (04/26/2005)
By Pam
RE: Whitening Porcelain Sinks
BarKeepers Friend is the absolute No. 1 choice (compared to Comet). My white porcelain sink is the kitchens original sink and BarKeepers Friend is the 'only' product that really makes it WHITE again. (06/14/2005)