The Lemon Juice Test

Testing Stone For Kitchen Countertop Usability -The Lemon Juice and Oil Test

The lemon juice test is a simple but effective way to test a stone for porosity and acid sensitivity. For example, you may be considering a certain granite for your kitchen counters. The kitchen is not where you want to have a porous and acid sensitive surface!

This test will help you determine before you buy if your stone choice is going to work well for the environment it is in. Take a piece of the scrap "granite" you wish to test and spill a few drops of lemon juice onto it. If you see that under the drops of lemon it develops very quickly dark spots, it means that it's a very absorbent stone and I would advise you (and anybody else, for that matter) against it. If it takes, say, a minute or so to be absorbed, then you're dealing with a degree of absorbency that's easily manageable with the application of a good-quality impregnator-type sealer. If it doesn't absorb at all, then you have a winner right there!

Why lemon juice and not simply water?

Because lemon juice is highly acidic, and, if for any chance, the "granite" you're considering is a mixed stone (with some calcite in it), it would etch. That is, it would have a permanent dull spot where the lemon was sitting, after you clean it up. If that's the case, you do NOT want that stone in your kitchen.

This is one of a series of articles written and published  on behalf of Stone and Tile PRO Partners.

SUBSCRIBE

We won’t be bugging you, selling your contact info, or otherwise making you regret signing up. We will just be sending you an occasional message with articles and our digital magazine, Surface BUZZ, from time to time (you’ll love it, we promise!) and on occasion a little reminder that we are there for you for your surface care needs.