Line them up on a table or countertop dust them thoroughly then spill a few drops of lemon juice and cooking oil on each one of them.
Lemon juice on black granite.
Acidic foods such as lemons or tomato sauce can discolor a granite counter top and mar its beauty.
The lemon juice and oil test will help you determine the suitability of any stone you are considering.
Collect a sample of any stone you are considering.
Let the lemon juice and the oil sit on the surface of the stone for 5 minutes or so and then wipe it dry.
The lemon juice and oil test will help you determine the suitability of any stone you are considering.
Although it is resistant to etching acids and other corrosive agents may etch its surface.
While granite is one of the least likely natural stone surfaces to stain there is a rare chance that some stains can occur.
One of these types of stains is water stains.
In terms of tools you should not use stay away from anything that is abrasive.
Cut off the top 1 4 of the lemons and shave a small slice off the bottom so it stands easily.
Line them up on a table or countertop dust them thoroughly then spill a few drops of lemon juice and cooking oil on each one of them.
Additional products you should never use include lemon juice vinegar ammonia and bleach.
Granite is not however invulnerable to damage.
Get lemon granita recipe from food network.
If you notice dull spots where the lemon juice hit the surface you do not want this granite for your kitchen counter tops.