Learn how to clean discolored granite countertops. Find out how granite countertops get stained or discolored, and what commercial products you can use to clean them.
LESLIE: Ray in Delaware, what’s going on at your house?
RAY: I bought a granite countertop  that’s medium brown to dark brown. And there’s one seam and part of the seam, it’s darkened on either side of it about six inches long and it’s just slightly darker.
TOM: OK. Ray, that’s not just dirt, is it, that’s in that seam? Like a grout joint that gets dark?
RAY: No, no. It’s into the granite.
TOM: Has it always been that way, Ray, or did it happen …
RAY: Well, they just – it got installed like July.
TOM: And was it like that from the get-go or did you guys put something on it …
RAY: No, no. It was – no, never put anything on it. It happened like a month or five weeks later we noticed it.
TOM: Well something must have happened. Granite is very old – it’s millions of years old – and it’s not just going to turn that color all by itself. So something must have gotten in there or perhaps it was like that and you just didn’t notice it. But it’s not – it’s pretty much an inorganic product so it’s not going to change on its own.
LESLIE: Well, it could be, Ray, that you guys perhaps cleaned the countertop  with an inappropriate cleaning material. Because sometimes if you use the wrong thing it could cause discoloration.
RAY: We really weren’t even here because I have another home we stay at. So, the countertops I mean basically didn’t even get used.
TOM: Well, there’s a company called Stone Care  that makes a whole line of granite cleaners. You might want to try to clean that top with some good professional cleaner and see if takes any of that color out. But if it’s a stain that’s embedded down into it, then it’s going to be very, very difficult for you to pull it back up.
Ray, thanks so much for calling us at 888-MONEY-PIT.