Tiles are inhospitable to mold, germs, dust mites, and other environmental pollutants. This is why people use tiles in their home renovation projects instead of carpet. It is because carpets are hospitable to the germs, which can lead to different types of allergies. Many people who have respiratory problems can get asthma and other diseases.

While using tiles in your home, for example, in your kitchen or bathroom, you need an excellent sealant. Grout is a filler used between the tiles to keep them solid. If you are installing tiles in your home as a DIY project, you must know how to mix grout so that you have an accurate tile application installed. Let us tell you how to mix grout.

Mix water and grout powder

First, you need to use an adequate amount of grout powder and water. Use a bucket to mix water and grout. We recommend half of the grout powder. It is important to maintain a powder-to-water ratio. Follow the directions mentioned in the grout powder packaging for accurate mixing.

When you follow the instructions, you can add the right amount of water and grout. Make sure you add less water to the grout. Some people prefer a thin mixture. Others prefer a thick mixture. However, experts suggest having a balanced water-to-grout mixture.

If you think the mixture requires more water, slowly add some more. Avoid adding too much water because it will make the mixture thin, which will not stick between the tile spaces.

Do not add mix grout with hard water. It is because hard water can cause efflorescence, which is a residue that causes moisture between the tiles. So, always use distilled water for mixing.

Use a knife to stir the mixture

It is important to accurately mix the powder with water. To do this, put the mixture in a bucket and turn it around 45 degrees angle. This makes it simple and easier to see whether the water and powder content mix adequately.

Again, we recommend using less water. However, you can always add some more water in case you need it. Now using a knife to thoroughly mix the powder and water. Continue to string the mixture until you achieve a well-blended grout.

Don’t use a corded drill to mix the grout. Also, some people use mixing machines. We don’t recommend that because it can create air bubbles in the mixture. This likewise weakens the quality of the grout.

Make necessary adjustments

You don’t want to spoil the tiles that require usage in your kitchen or bathroom. Therefore, you need a consistent grout mixture. Typically, if your grout has an appearance like creamy peanut butter, you are good to good. If it appears oily, then you need to make adjustments. You can either add more powder or water depending on the requirement.

You must make a soft bread dough type grout, which allows the tiles to sit properly on the floor and fill in the gaps to keep them tight and solid. Make sure the grout does not leak water. If so, you can add more powder. Adjustments are necessary from time to time if you have a large DIY project undergoing. It is because the mixture can absorb moisture.

If your grout appears thinner or liquid-form, again, you need to add some powder in the mixture. If you leave it too thin, the grout will shrink and break. It won’t keep the tiles solid and tight. On the other hand, you need an elbow grease for pushing the grout into the tiles. The type of grout that requires elbow grease, in general, is a good grout.

In case you think the grout is clumpy and dry, you can moisten it. You can do this by adding a small amount of water and start to string the mixture with the knife again. The purpose is to make a peanut-butter like texture.

Leave the mixture for 10-15 minutes

You must allow the grout to slake. This means you need to let it rest for about 10-15 minutes. This allows for an accurate mixture of different chemicals in the powder. Moisture can fully permeate the powder during the process of slaking or resting.

Your grout won’t stick between the tiles if you ignore this step. Therefore, proper slaking is mandatory. If you think the grout is still chipping or breaking, adding some more water will make it thicker. While doing this, make sure you allow for more 5 minutes more slaking.


Wrapping up, tiles are way better than carpets, particularly in terms of avoiding environmental allergens. You may not know but grout comes in two different varieties. It is up to your personal preference to choose either sanded or non-sanded grout. You can use unsanded grout if the thickness of the tiles is 1/8 inches.

This way, the un-sanded grout will stick better. On the other hand, if the tile thickness is just ½ inches, then you need to use the sanded grout. This allows for less shrinkage and superior bonding.

Moreover, keep in mind tiling professionals prefer grout with polymer additives. When you add a polymer additive to the grout, it will keep the grout balanced as well as avoid moisture to penetrate in. For example, we recommend adding a fungicide to the mixture, especially if you are using tiles in your bathroom. This will help resist the growth of mold and mildew.

What is the ratio for mixing grout?

Grout to Water Ratio

When mixing grout, the right ratio of water to mix will come together easily so the tile can be sealed and set without mess and dust to clean up later. The grout to water ratio is typically 1:1. Always check the manufacturer’s directions for the grout mix you have chosen to use.

How long leave grout before wiping?

Let the grout set for 15 to 30 minutes, and wipe up the excess grout with a dense grout sponge soaked in water. (If you think it’s going to take you longer than 30 minutes to grout all of the tiles and be ready to move onto cleanup, you may have to work in smaller sections.)

Can you mix grout by hand?

Mix the grout until it’s powder-free

Pour some grout out of the bag into a mixing bucket. Pour water in a little at a time and start mixing by hand using a margin trowel (See “A Tiler’s Best Friend” below). And don’t mix grout with a drill and mixing paddle. This method churns the grout and introduces air into the mix.

How thick should grout be?

Finished grout lines will vary from 1/16″ to 3/16″. Note that using the smallest grout possible will increase installation time. 3/16″: We recommend a 3/16″ grout size for our Ceramic Tile line. This thickness leaves room for the natural variation in size, and the perfectly imperfect edges of handmade tile.

What happens if grout is too thick?

When it’s exposed to water, it will disintegrate and fall out of the crevices between the tiles. Grout that is too thick won’t fully seal the tile because it’ll be too thick to reach the bottom of the breaks. Overly thick grout can also stick to the surface of the tiles and is difficult to remove when the job is done.

Should grout be thick or thin?

STEP 5: Adjust grout consistency by adding powder or water.

Chavoustie says grout mixed for floors should be “smooth peanut butter consistency” while grout for walls should be a bit thicker.

Can you grout over grout?

You can apply new grout right over the top of the old grout. To do this, all you need is a grout removal tool. Once you‘ve removed the old grout, make sure to clean the area so there is no grout dust or debris that will get in the way of the new grout.

How do you mix small amounts of grout?

How do I thicken grout?

If you have too much water in the grout, the mix will be runny and will clump as it pours off the float. Add a small amount of latex additive into the mix. The sticky substance adds creaminess to the mixture.

How much water should I add to grout?

Measure out the grout powder and pour it into the empty bucket. If you are grouting a large surface, start with a fraction of the total grout you will need, and mix in small batches so that the grout doesn’t dry out too quickly. Add 3/4 of total water needed for the measured amount of grout powder. Begin mixing.

How do you fix a bad grout job?

Can you do a second layer of grout?

While it will stick to the substrate at the bottom of the grout lines to an extent, it is not a permanent bond. Attempting to grout over the top of old grout is simply stacking two seperate layers of grout. It will always remain two seperate layers.

How many coats of grout do I need?

Do a water test today. If the grout darkens before 5 minutes you’ll need another coat. If you apply another coat, be sure to buff the excess sealer off the face of the tiles. Depending on the porosity of the grout 2-3 coats may be needed.

What happens if you don’t seal grout?

When grout is not sealed in time, grime and water can seep into it, causing breaks on your tiles and forcing them to break at a certain point. By sealing your grout, you get to prolong your tile surface’s lifespan and minimize damage to a considerable extent.

What grout does not need to be sealed?

The only type of grout that doesn’t need sealer is epoxy, which is inherently pre-sealed.

What happens if you don’t use grout sealer?

Why you need grout sealer

Grout is basically a mixture of sand and cement. As a result, if you don’t seal your grout, it will absorb water, bacteria and stains. Adding a grout sealer protects your grout so it’s water resistant and will repel moisture and germs.

How do you tell if your grout is sealed?

How to Tell If Grout Is Sealed. You can sometimes tell if your tile or grout have been sealed by spreading a few drops of water on them. If they darken or change color, they are probably not sealed. If they stay the same, they may have already been sealed.

What is the best way to seal grout?