How to Lighten Grout | Step By Step Guide By Expert

As time goes by, people are asking more and more the question: how to lighten grout?

Tile grout was created to last a long time, but it does not last a lifetime. Long before the grout begins to deteriorate physically, its discoloration will be evident, and we will see how it loses interest.

Far beyond the fact that grout discoloration is often a major part of having tile floors, walls, even backsplashes or counters, few owners want this or want to deal with it.

However, the grout’s discoloration can occur due to mold and mildew, and dirt that accumulate unnoticeably in the grout joints over time. It does not matter how consistently you seal grout and how much scrub it. You will most likely end up with dirty, discolored grout.

No matter if you currently have a problem with your tile grout or don’t like the color of your grout, it is feasible to change the color without breaking all the tiles.

Lighting the grout colors is a lightweight and effective way to make an area look better by returning the grout lines to their original color or close to it.

It is an easy project that will require a concise amount of time, but keep in mind that some safety precautions have to be taken because the bleaching compound can be threatening to your skin.

Changing color grout from dark to light is straightforward, although, at times, it can be stressful.

It can lighten the grout color, but more coats are needed, and the results are likely to be less than satisfactory.

How to Lighten Grout: Tools Required

How to Lighten Grout

Electric multi-tool

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Plastic sheets

The materials are:

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Latex or nitrile gloves

How to Lighten Grout

How to Lighten Grout

Remove the old grout

  • First, it is important that you remove the old grout with utilities such as multiple electric utilities equipped with a tile blade or a handheld grout saw.
  • It is horrid to have stain for grout in your home
  • You can use a small flathead screwdriver and knife to clean the sticky tiles‘ edges and enter into tight spaces.
  • This way, it is important to check that the tiles are properly attached to the substrate. Touch the tiles with the plastic back of a screwdriver.
  • If there is a hollow sound in front of most of the tiles, that tile should be replaced.
  • Moving tiles are the cause of grout crumbling, and reusing the grout will not solve the problem.
  • A curious fact is that polyline grout renew.

Removing grout particles

In this step, you must remove the grout particles from between the tiles. This requires the use of a shop vacuum with a flat grout attachment.

Novelty grout

It would help if you chose a unique grout that is correct for the tile installation.

Unsanded grout is used for grout joints less than 1/8″ wide, while sanded grout is used for joints 1/8″ wide or wider.

Grout Pigment

To continue, you must add the pigment to the grout mixture. Grout usually comes in a vast range of factory mixed colors. However, you can customize the color by using liquid grout dye or powdered grout pigment.

Mixing to use the grout

At this point, you should only stir and place the grout, following the developer’s guidelines.

The grout is a three-step development to complete the joints, remove excess, and clean the tiles’ faces.

Grout Sealing

Seal the grout, if desired, after it is fully cured. The sealer helps secure the grout from staining and discoloration but may prevent the grout’s color from changing later. Keep in mind that the sealer subtly darkens the grout and gives it a glossy appearance. In many cases, it is not easy to grout renew; however, it is necessary.

How to Bleach your Grout with Vinegar

YouTube video
  • Use vinegar to clean the grout between synthetic or ceramic tiles. Avoid using it near natural stone tiles such as marble, travertine or limestone, because the acidity will create an etching that will degrade the stone.
  • Wear glasses to protect your eyes from the vinegar. Fill a spray bottle up to three-quarters full with undiluted distilled white vinegar.
  • Spray the vinegar-stained grout. Allow the vinegar to penetrate for five to 10 minutes to get into the grout.
  • Rub the grout with an old toothbrush or scrubbing brush to remove the stains. Pay particular attention to heavily stained surfaces.
  • Rinse the vinegar to reveal clean, white grout. Treat remaining stains with more vinegar and rinse. Clean the area with your favorite tile cleaner to help remove the vinegar smell. Not just any paint for grout will do.

Can bleach contribute to the grout?

bleach contribute to the grout

Although bleach should be used with caution, it can be good for grout and tile in small, controlled proportions. Bleach is a popular disinfectant and is useful when trying to kill bacteria, viruses, mold, and fungi.

If your grout has become dark due to soap scum or mold, bleach is useful in fixing that problem and preventing it from becoming so bad again. Generally, bleach is a utility that will produce different results depending on how you use it. To clean grout from tiles, you need to have a little patience and the right materials.

How to Lighten Grout: FAQ

Why did my grout turn lighter?

The grout that turns white usually has to effloresce, which is the movement of salt or minerals into the area of the porous material, as is the grout, and forms a whitish coating.

This can occur in different ways. The most common cause is soil moisture under the slab, but the slurry can also turn white from the rain in outdoor facilities or, in rare cases, from water used to clean the floor.

However, another advantage is that the grout was used that had polymer inside and was thus exposed to a lot of water before the polymers had a chance to combine, which gives better results.

Finally, in less frequent cases, the grout can turn white because the cleaning agents do not completely remove themselves and leave a detergent residue that builds up over time. Most of the time, the cleaners’ residues are not exactly visible, but they have the possibility to combine with light-colored soil and cause a coating on the grout thanks to the porosity of the grout.

Is it possible to put new grout on top of the old one?

Dirty grout is ugly to look at and can cause serious problems if water or sand sinks in the middle of the tile that seals the grout. While you should not remove all of the grout when attempting to recompose or resurface a wall or floor completely, there are some important elements to understand when placing grout over the grout. Be ready before you putter with spatters and grout mixes or caulk and take the re-chaining of a dirty space seriously.

Taking the time to place new grout can give your space a whole new look. It can go from old and worn out to new and certainly more serviceable in the long run. Novelty grout can make an area stronger against water and impervious to impurities that wreak havoc on the space between loose tiles. Be sure to use the same type of grout to place over the old grout or one that adheres well to it, or you will have to do the job again in terms of months.

How long does it take grout to lighten?

For grout, it will lighten very close to the dry colored powder. It will depend on the proportion of water added when combining fluffing and the air temperature and humidity, it will take usually one or two days. Yes, it does not take long for the moisture to come out and return to its true color.

The grout most often appears darker when it is wet than when it is dry. Novelty grout can take 24 or even 48 hours to dry completely. It is dependent on the humidity and temperature of the room where the grout is installed.


If you want to clear the grout, you have some accessible configurations. It is feasible to lighten the dark grout in a few brighter shades by using bleaching powder. You have to dilute the bleach, rub, and rinse. Whenever it is made with whitish grout, its color should be lightened rather than discolored.

Maybe you are looking for the wrong color grout how to fix it. You must follow the steps given in the article read to succeed in this.

On the other hand, if your grout has a deep color (such as a bright red or blue), your most commonly used options are to use a grout colorant or substitute the grout. For the most part, bleach will not harm your grout if used responsibly, but when it comes to dye, it can cause serious discoloration.

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