How to Clean Grout Between Tiles

Bathrooms and kitchens are areas where hygiene is crucial. However, over time, the grout between tiles can fade, become moldy, or simply get dirty. The moisture between the tiles, in particular, can lead to mold and quick dirt buildup. No matter how thoroughly you clean your bathroom or kitchen, dirty grout can make the space look neglected. So, how can you effectively clean the grout between your tiles? What materials should you use for grout cleaning? Let’s explore the best methods and tips for achieving spotless grout lines in your bathroom and kitchen.
Why Clean Between Joints?
Dirty grout not only looks unsightly, but it also provides a breeding ground for bacteria, mold, and mildew. Regular cleaning helps prevent this buildup, ensuring that your home remains hygienic. Additionally, properly cleaning grout can extend its lifespan and maintain the overall appearance of your tiles.
However, using the wrong cleaning products can damage the grout or cause discoloration on the tiles. It’s crucial to use the right methods and products to avoid causing harm. Here’s how to clean grout effectively and safely:
4 Easy Ways to Clean Grout Between Tiles
1-Baking Soda and Vinegar Solution

A natural and eco-friendly method for cleaning grout is by using baking soda and vinegar. Here’s how to do it:
- Combine baking soda with a small amount of water to create a thick paste.
- Apply the paste onto the grout lines and allow it to sit for several minutes.
- Mist the paste with white vinegar and watch it bubble.
- Use an old toothbrush or a grout cleaning brush to scrub the lines.
- Rinse the grout with warm water to eliminate any remaining paste.
Tip: Avoid using vinegar on natural stone tiles, as it can cause damage.
2-Hydrogen Peroxide Solution

Hydrogen peroxide is a powerful stain remover and disinfectant. Mix equal parts of hydrogen peroxide and water in a spray bottle. Spray the solution onto the grout lines and let it sit for 10-15 minutes. Scrub with an old toothbrush and rinse thoroughly with warm water. If the grout is not completely clean, repeat the process.
3-Commercial Grout and Mold Cleaners

Commercial grout and mold cleaners are one of the easiest ways to clean between tiles. With these, you can quickly remove mold from the grout lines and achieve cleaner joints in no time. In the U.S., some popular options include:
- CLR Bath & Kitchen Cleaner
- Zep Grout Cleaner & Brightener
- Kaboom Mold & Mildew Stain Remover
- Lysol Mold and Mildew Remover
Spray the cleaner directly onto the grout. Let it sit for a few minutes so it can break down dirt and stains. Scrub the grout lines with a brush, then wipe away the residue using a damp cloth. Note: Always ventilate the area well when using chemical cleaners, and wear gloves to protect your skin.
4-Grout Whitening and Sealing Solutions

For heavily stained grout or grout that has aged significantly, you may want to try whitening or sealing products:
- Grout Pens: These are easy-to-use markers that allow you to recolor grout, giving it a refreshed, brand-new look. You can paint the grout lines between the tiles with a paint pen or general-purpose acrylic paint using a brush. “Related article: How to paint grout“
- Decorative Interior-Tile Tape: Decorative interior-tile tape is an adhesive tape applied to the grout lines or edges of tiles. Available in various colors and patterns, it is commonly used in kitchens, bathrooms, and other interior spaces to add both style and functionality. Purpose of Use: This decorative tape helps to make grout lines look cleaner and more organized. It’s especially useful for covering grout that has become dirty or discolored over time. Additionally, it adds a pop of color or design to the edges of tiles, enhancing the overall décor of the space. Easy to apply, this tape instantly transforms the look of your tiles without the need for complicated installations or renovations.
Important Tips for Cleaning Grout
Avoid using abrasive materials like steel wool when cleaning grout, as they can scratch both the grout and the tiles. Always use a soft-bristled brush to prevent damage to the grout. When using strong chemical cleaners, ensure the area is well-ventilated. After cleaning, rinse the grout thoroughly to remove any remaining cleaner or residue. This helps prevent dirt from settling back into the grout. Keep the grout dry to protect it from moisture, which will help prevent mold growth between the tiles. “Related article: How to get paint off tiles.”
Warnings and Extra Tips
- Never use harsh chemicals like undiluted bleach or ammonia directly on grout, as they can weaken it over time.
- Don’t mix cleaning agents like vinegar and bleach, as this can produce toxic fumes.
- Always test any cleaning solution on a small, inconspicuous area first to ensure it won’t damage the grout or tiles.
- After cleaning, dry the grout lines to prevent moisture buildup, which can lead to mold or mildew growth.
Regular grout cleaning is essential to maintaining a hygienic and visually appealing bathroom or kitchen. Choose the right method based on your needs, whether it’s a natural solution like baking soda and vinegar or a commercial product like a mold remover or grout pen. By keeping up with routine cleaning and maintenance, you’ll ensure that your grout remains fresh, clean, and mold-free for years to come.
Frequently Asked Questions
How can I clean my grout between tiles that have darkened?
To brighten darkened grout, create a paste by mixing baking soda with water. Apply the paste to the grout lines and allow it to sit for a few minutes. Scrub with a toothbrush to lift away dirt and stains. For tougher grime, consider using hydrogen peroxide or a store-bought grout cleaner. Be sure to rinse thoroughly with warm water to remove any leftover cleaner.
Does vinegar and baking soda damage grout?
Vinegar and baking soda are generally safe for cleaning grout, but vinegar should be avoided on natural stone tiles, as it can damage the surface. For most ceramic or porcelain tiles, the combination is effective for cleaning without harming the grout. Always perform a spot test on a small, inconspicuous area first to make sure it won’t cause any damage.
How do professionals clean grout?
Professionals usually clean grout by using a mix of effective commercial cleaners, steam cleaners, and specialized brushes. They apply a grout-specific cleaner or a potent cleaning solution, allowing it to sit and break down stains and dirt before scrubbing with a grout brush. For stubborn stains, they may also use a power washer or steam cleaner to thoroughly clean and disinfect the grout lines.
How to clean dirty grout between tiles?
To clean dirty grout between tiles, begin by applying a cleaning solution, such as a baking soda and water mixture or a commercial grout cleaner. Allow it to sit for a few minutes to loosen the dirt. Use a soft-bristled brush or an old toothbrush to scrub the grout lines. Rinse the area thoroughly with warm water to remove any leftover cleaner. For more stubborn stains, try using hydrogen peroxide or a mold and mildew remover.
How to clean between tiles in shower?
Since the grout in the shower stays constantly damp, mold and dirt buildup are common. Keeping the grout lines in the shower dry is the best way to prevent them from getting dirty quickly. Additionally, it’s important to regularly clean these areas with mold remover sprays before dirt and grime accumulate.