Normally this is a project best left for a professional.
Lemon juice stains on granite.
A superficial etch mark and a deeper lemon stain on.
These are available at local stone centers and online.
Vinegar and lemon juice are acidic and will damage your granite surfaces.
On its own lemon juice acts as a bleaching or whitening agent that removes stain causing substances as it disinfects.
A lemon stain on marble can also be of both kinds.
The lemon juice on marble floor is absorbed by the stone and the marble presents a darker color spot.
Lemon juice serves as an all natural stain remover for clothing cups grout and even plastic containers.
Lemon stains on marble.
However if you get a stain on your granite countertop you can treat it with a poultice of baking soda and water.
Granite being porous lemon juice can cause corrosion to the granite.
Removing water stains from granite typically involves the use of a poultice.
There are honing powders and polishes that may minimize the damage.
This is a solution that can be created by a mixture of baking soda and 3 percent hydrogen peroxide.
In terms of tools you should not use stay away from anything that is.
Mix two or three tablespoons of water with enough baking soda to make a thick paste and apply thinly to the stain.
Lemon juice is citric acid and will etch granite countertops.
Lemons also efficiently remove grease and grime from kitchen and bathroom faucets and fixtures.
If the sealer and polish did not correct the problem refinishing the counter top is the next step.
This case is not very common as lemon does not usually penetrate that deep.