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Ask Martha

Removing coffee stains from sink

Q. What is the best way to remove a coffee stain from my kitchen sink?

A. The good news is that coffee isn’t the toughest stain you and your kitchen sink could face. As long as you use the proper cleaners and don’t get too aggressive — steel wool is never a good idea when it comes to sinks — you shouldn’t worry about permanent damage. Try the gentlest method first: dishwashing liquid, water, and a soft sponge. If the stain had time to set in or if the sink is made of a porous material that becomes discolored easily, such as soapstone, it might take more effort.

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