How to clean grout

Maintaining a clean and hygienic living space is essential, and one often overlooked aspect is the cleanliness of grout. Grout, the material that fills the gaps between tiles, can accumulate dirt, stains, and mold over time, making it appear discolored and unattractive. Cleaning grout not only enhances the overall aesthetics of your floors and walls but also promotes a healthier environment. In this article, we will explore effective methods to clean grout and restore its original luster.

clean grout

Understanding Grout

Before diving into the cleaning process, it’s crucial to understand what grout is. Grout is a mixture of cement, sand, and water used to fill the gaps between tiles. It acts as a support system, preventing tiles from shifting and protecting the edges. However, due to its porous nature, grout tends to absorb dirt, moisture, and stains, making it susceptible to discoloration and mold growth.

Importance of Cleaning Grout

Cleaning grout regularly is essential for several reasons. Firstly, dirty grout can negatively impact the appearance of your floors or walls, giving them a neglected and unclean look. Secondly, accumulated dirt and moisture can lead to the growth of mold and mildew, which can cause respiratory issues and allergies. Lastly, by maintaining clean grout, you extend the lifespan of your tiles and prevent costly repairs or replacements in the future.

Types of Grout

There are various types of grout available, each with its own characteristics and cleaning requirements. Common types include cementitious grout, epoxy grout, and urethane grout. Cementitious grout is the most widely used and requires regular cleaning and sealing. Epoxy grout is highly resistant to stains and moisture but requires specific cleaning methods. Urethane grout is durable and low-maintenance, but proper cleaning is still necessary.

Tools and Materials Needed

To clean grout effectively, gather the following tools and materials: a stiff-bristled brush, a toothbrush, a grout brush, a spray bottle, white vinegar, baking soda, hydrogen peroxide, oxygen bleach, a steam cleaner, a mop, and microfiber cloths. Having these items readily available will make the cleaning process more efficient.

Preparing the Area

Before cleaning, it’s essential to prepare the area properly. Remove any loose debris or dirt from the surface using a broom or vacuum cleaner. For safety reasons, ensure the area is well-ventilated by opening windows or using fans. Additionally, protect surrounding surfaces, such as countertops or baseboards, by covering them with plastic sheets or towels.

Cleaning Solutions

There are several cleaning solutions you can use to tackle grout stains. White vinegar is a versatile and affordable option that works well for general cleaning. Baking soda mixed with water or vinegar creates a powerful paste for stain removal. Hydrogen peroxide is effective against tough stains, while oxygen bleach is suitable for both light and heavy-duty cleaning. Experiment with these solutions to find the one that works best for your grout type and level of dirt.

Scrubbing Techniques

When it comes to cleaning grout, proper scrubbing techniques are crucial. Use a stiff-bristled brush or a grout brush to scrub the grout lines vigorously. Apply the chosen cleaning solution onto the grout lines and let it sit for a few minutes before scrubbing. For smaller or hard-to-reach areas, a toothbrush can be used for precision cleaning. Remember to scrub gently to avoid damaging the grout or tiles.

Steam Cleaning

Steam cleaning is an effective and environmentally friendly method to clean grout. A steam cleaner uses high-pressure steam to break down dirt and stains, eliminating the need for harsh chemicals. Follow the manufacturer’s instructions to ensure safe and efficient steam cleaning. However, keep in mind that steam cleaning may not be suitable for all types of grout, so check the manufacturer’s recommendations beforehand.

Natural Cleaning Methods

If you prefer natural cleaning methods, there are several options available. Lemon juice mixed with baking soda creates a powerful cleaning paste. Apply the paste to the grout lines, let it sit for a few minutes, and scrub gently. Another natural option is a mixture of vinegar and water. Fill a spray bottle with equal parts vinegar and water, spray it onto the grout lines, and scrub with a brush or toothbrush.

Removing Stubborn Stains

Stubborn stains on grout can be challenging to remove. For deeply ingrained stains, consider using oxygen bleach or hydrogen peroxide. Apply the solution to the stained area, let it sit for an extended period, and scrub gently. Repeat the process if necessary. If the stain persists, seek professional assistance or consult the manufacturer for specialized stain removal solutions.

Sealing Grout

After cleaning grout, it’s crucial to seal it to prevent future stains and dirt buildup. Choose a high-quality grout sealer suitable for your grout type. Apply the sealer carefully, following the manufacturer’s instructions. Generally, you will need to wait for the grout to dry completely before applying the sealer. Regularly reapply the sealer as recommended to maintain its protective properties.

Maintaining Clean Grout

To keep your grout clean for an extended period, establish a regular cleaning routine. Sweep or vacuum the area regularly to remove loose dirt and debris. Wipe down surfaces with a damp mop or cloth to prevent the accumulation of dirt. Additionally, avoid using abrasive cleaners or scrub brushes, as they can damage the grout. By incorporating these habits into your cleaning routine, you can ensure long-lasting clean grout.

Common Mistakes to Avoid

When cleaning grout, it’s essential to avoid common mistakes that can lead to damage or ineffective cleaning. Avoid using harsh chemicals, such as bleach, on colored grout, as it can cause discoloration. Similarly, avoid using abrasive tools or scrubbing too vigorously, as this can scratch or chip the grout. Additionally, do not ignore mold or mildew growth, as it can spread and cause further damage.


Cleaning grout is an essential task that helps maintain the cleanliness and appearance of your tiles. By following the methods and techniques outlined in this article, you can effectively clean grout and restore its original beauty. Remember to choose the appropriate cleaning solutions, use proper scrubbing techniques, and establish a regular cleaning routine. With a little effort and consistency, you can enjoy clean and hygienic grout for years to come.


Q1. How often should grout be cleaned?

It is recommended to clean grout at least once every three to six months. However, high-traffic areas or areas exposed to moisture may require more frequent cleaning.

Q2. Can I use bleach to clean grout?

While bleach can be effective for cleaning grout, it should be avoided on colored grout as it can cause discoloration. It is best to use alternative cleaning solutions or consult the manufacturer’s recommendations.

Q3. Can steam cleaning damage grout?

When used correctly, steam cleaning is safe for most types of grout. However, it’s important to follow the manufacturer’s instructions and check if steam cleaning is suitable for your specific grout type.

Q4. How can I prevent mold and mildew growth in grout?

To prevent mold and mildew growth, ensure proper ventilation in the area, wipe down surfaces regularly, and address any moisture issues promptly. Applying a grout sealer can also provide added protection.

Q5. Should I hire a professional for grout cleaning?

If your grout is heavily stained or you’re unsure about the cleaning process, it may be wise to hire a professional. They have the expertise and specialized equipment to handle tough grout cleaning tasks effectively.

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