[header] How to clean a granite sink [title] Select a non-abrasive scrubbing pad. [step] Many sponges will have this scrubbing pad on one side, or they can be purchased on their own. Do not use anything harsh like steel wool, which will damage the finish on your granite sink. 
[title] Dampen and put soap on the scrubber. [step] Saturate the scrubber with hot water and then apply 2-3 drops of a mild liquid dish soap to it.