5 Best Grout Cleaners of 2025

The 5 Best Grout Cleaners (2025 Review)

Cleaning grout between tiles in your bathroom or kitchen can be challenging without the right cleaning solution. Grout, being porous by nature, easily traps dirt, stains, and mildew over time, requiring specialized cleaners for effective removal. Whether you’re dealing with light surface dirt or stubborn deep stains, selecting the right grout cleaner depends on several factors, including the color of your grout, the type of tile material, and the severity of the staining.

We’ve tested and reviewed the leading grout cleaners on the market to help you make an informed decision. Our top five selections range in price from approximately $15 to $36, with application times varying from just one minute to 24 hours, depending on the cleaning strength required. Each product has been evaluated for effectiveness, ease of use, safety, and value.

Top 5 Grout Cleaners at a Glance

Here are the best grout cleaners we’ve tested:

• Black Diamond Ultimate Grout Cleaner — Best Spray
• Clean-eez Grout-eez Grout Cleaner — Best For Deep Cleaning
• Bar Keepers Friend Soft Cleanser — Best Kit
• SKYLAR LIFE Mold and Mildew Stain Cleaner — Best For Small Bathrooms
• FOLLOWIN Mold and Mildew Cleaner — Best For Widespread Mold Removal

Grout Cleaners Comparison Chart

Best Spray: Black Diamond Ultimate Grout Cleaner

For homeowners seeking a fast and efficient cleaning solution, the Black Diamond Ultimate Grout Cleaner stands out as the top choice. This spray-based cleaner offers unmatched convenience with its easy-to-use nozzle applicator, eliminating the need to bend over extensively while applying the product.

How It Works

The application process is straightforward: spray the cleaner directly onto your grout lines, allow it to sit for one to three minutes, gently agitate the area with a soft-bristled brush, and rinse thoroughly with water. Within less than an hour, your grout returns to its original appearance with minimal effort.

Advantages

• Easy spray application with minimal bending required
• Effective on both white and colored grout
• Acid-free formula prevents floor damage
• Quick results visible after minimal scrubbing
• Covers large grout areas efficiently

Disadvantages

• Cannot remove mold or mildew stains
• Has a harsh chemical smell
• May require multiple applications on heavily soiled grout
• Can irritate sensitive skin

Customer Feedback

Amazon reviewers consistently praised this grout cleaner’s ability to restore grout to its original color across various tile surfaces. Many customers noted dramatic improvements after a single application on lightly to moderately soiled grout. However, some users with particularly dirty grout reported needing multiple applications for complete stain removal. A few customers mentioned skin irritation, making it essential to wear protective gloves during application.

Our Testing Results

During our comprehensive testing, our team immediately noticed the convenience of the spray nozzle applicator. The even coverage across grout lines simplified the entire cleaning process. After the recommended three-minute wait time, scrubbing was minimal and straightforward. We observed immediate results without any grout discoloration following a single pass with the brush.

Best For Deep Cleaning: Clean-eez Grout-eez Grout Cleaner

When dealing with stubborn, accumulated dirt, grease, and heavy-duty stains, the Clean-eez Grout-eez Grout Cleaner delivers professional-strength results. This cleaner is specifically formulated to penetrate deep into grout lines and return them to their original color, even after years of buildup.

Key Features

This professional-grade cleaner works on various tile surfaces, including ceramic and porcelain. Using its spout applicator, the solution spreads evenly across grout, drawing settled grime to the surface for easy removal. The extended soaking time of up to 24 hours allows the formula to penetrate deep into porous grout lines.

Application Process

Apply the cleaner directly to grout lines, allow it to soak for approximately 10 minutes, then scrub gently with a brush. For maximum penetration and results, allow the product to sit for up to 24 hours before rinsing completely.

What Users Say

Customers frequently commended this product’s ease of use and remarkable effectiveness at removing stubborn stains. The professional-strength formula delivers impressive results that standard cleaners cannot achieve. However, the strong chemical formula poses health concerns for some users, with several recommending the use of gloves, safety goggles, and a respiratory mask for protection during application.

Our Testing Experience

During testing, this solution naturally migrated into tile joints, providing excellent coverage of large grout areas. Following the recommended 10-minute soaking period and gentle scrubbing, the grout appeared noticeably lighter, returning close to its original light gray color. The transformation was particularly impressive for heavily soiled grout.

Best Kit: Bar Keepers Friend Soft Cleanser

Bar Keepers Friend Soft Cleanser offers a versatile, all-purpose solution for grout cleaning. This product delivers effective results for removing dirt and grime between tiles with a quick one-minute application time, making it ideal for homeowners seeking efficiency.

Performance and Results

Our testing confirmed this cleanser’s effectiveness at removing accumulated dirt and grime from grout lines. However, we noted that it leaves a white residue on tile and grout surfaces. This haze diminishes significantly after a second water rinse, leaving grout clean and fresh.

Best For Small Bathrooms: SKYLAR LIFE Mold and Mildew Stain Cleaner

The SKYLAR LIFE Mold and Mildew Stain Cleaner comes in a compact five-ounce squirt bottle, making it perfect for targeted cleaning in small bathroom spaces. This gel formula requires six to eight hours of soaking time but effectively removes mold and mildew stains that plague damp bathroom environments.

Best For Widespread Mold Removal: FOLLOWIN Mold and Mildew Cleaner

For bathrooms with widespread mold and mildew issues, the FOLLOWIN Mold and Mildew Cleaner provides a more substantial solution. The 18-ounce bottle offers greater coverage for larger grout areas, with a three to ten-hour soaking time depending on stain severity.

Essential Grout Cleaning Tools and Preparation

Regardless of which cleaner you select, having the proper tools ensures optimal results. Before beginning any grout cleaning project, gather the following items:

• Broom or vacuum — Removes loose dirt, dust, and debris
• Bucket — Holds rinse water for tile and grout
• Protective gloves — Shields hands from cleaning chemicals
• Grout brush or stiff-bristled toothbrush — Scrubs grime from grout lines
• Mop or sponge — Applies cleaning solutions evenly
• Steam cleaner (optional) — Loosens dirt and buildup for easier removal
• Towel — Dries tile and grout after cleaning

DIY Homemade Grout Cleaner Alternative

For budget-conscious homeowners or those preferring natural cleaning solutions, creating a homemade grout cleaner is an effective option. This solution uses common household ingredients and works by using acid to dissolve grout buildup while baking soda acts as a buffer and neutralizer.

Ingredients Needed

• Baking soda
• Dish soap
• Hot water
• White vinegar

Step-by-Step Instructions

1. Fill a cup with warm water
2. Add enough baking soda to create a gritty mixture
3. Add a few drops of dish soap and stir thoroughly
4. Pour white vinegar along grout lines
5. Immediately pour the baking soda mixture on top of the vinegar
6. Allow the mixture to sit for approximately five minutes
7. Scrub grout lines with a stiff-bristled brush
8. Wipe excess mixture with a damp sponge
9. Allow the floor to dry completely (approximately 45 minutes)

This homemade solution typically requires more scrubbing than commercial cleaners but offers a cost-effective and environmentally friendly alternative.

Commercial Grout Cleaner Options

Beyond our top five picks, several other commercial grout cleaners deserve consideration based on your specific needs and preferences.

Better Life Natural Tub and Tile Cleaner — This eco-friendly option features natural ingredients derived from coconut, corn, and citrus. Users appreciate its environmental benefits, though some note the sprayer could be improved for better application.

Stardrops — The Pink Stuff — A thick cleaning paste suitable for various surfaces, including delicate ceramic, porcelain, and marble. Users report impressive performance, though the product requires substantial scrubbing effort for best results.

Zep Grout Cleaner — An acid-based formula capable of brightening any grout color. However, its thin consistency can lead to overpour issues, and the acidic formula is unsuitable for natural stone surfaces.

Frequently Asked Questions About Grout Cleaning

Q: How often should I clean my grout?

A: For periodic deep cleaning, use a pH-neutral cleaner specifically designed for grout. Light surface cleaning can be done monthly, while deep cleaning is recommended quarterly or as needed based on visible staining and mildew growth.

Q: Is it safe to use commercial grout cleaners on natural stone tiles?

A: Many commercial grout cleaners, particularly acid-based formulas, can damage natural stone. Always verify that your chosen cleaner is safe for your specific tile material before application. Acid-free options like Black Diamond are safer choices for various tile types.

Q: Can I use bleach to clean grout?

A: While bleach can remove mold and mildew, it may discolor grout over time. Commercial cleaners specifically formulated for grout provide safer, more effective results with better color preservation.

Q: How do I prevent mold and mildew in grout?

A: Proper ventilation, regular cleaning, and grout sealing help prevent mold growth. Applying a grout sealer after cleaning creates a protective barrier against moisture absorption.

Q: Should I seal my grout after cleaning?

A: Yes, applying grout sealer after cleaning creates a protective layer that prevents stains and moisture from penetrating the porous grout material, extending the time between cleanings.