Bathroom grout is one of the quickest places to collect mold, soap scum, and stubborn stains. Even if the rest of your bathroom looks spotless, dark or yellowed grout lines can instantly make the entire space feel old and unhygienic.

The good news: restoring bright, clean grout doesn’t require hours of scrubbing. With the right methods, a few gentle strokes are enough to bring back its original shine.

Here are five highly effective cleaning tips homeowners swear by.

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1. Use baking soda and vinegar for deep cleaning

Baking soda breaks down grime while vinegar lifts hidden dirt from the pores of the grout.

How to do it:
Mix baking soda with a little water to form a paste, spread it onto the grout, spray with vinegar, wait a few minutes, then wipe — the stains come off easily.

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2. Try a lemon-and-salt scrub for natural whitening

Lemon is a natural bleach, and salt helps exfoliate without damaging the tiles.

How to do it:
Cut a lemon in half, dip it in salt, and gently scrub the grout. Rinse well. Perfect for mild discoloration.

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3. Use a toothbrush with dish soap for quick daily cleaning

Dish soap dissolves oils and soap residue — the most common causes of buildup.

How to do it:
Apply dish soap directly to the grout and use an old toothbrush to scrub lightly. Great for fast maintenance.

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4. Apply hydrogen peroxide for stubborn mold stains

Hydrogen peroxide penetrates deep into the grout to kill mold and bacteria.

How to do it:
Spray peroxide onto the grout, wait 10 minutes, and wipe clean. Works especially well in humid bathrooms.

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5. Finish with a grout sealer to keep it clean longer

A sealant prevents moisture and dirt from soaking into the grout, making future cleaning effortless.

How to do it:
After the grout dries completely, apply a thin layer of sealer. One application can last several months.

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The Bottom Line

Bathroom grout may get dirty fast, but with the right techniques, it’s surprisingly easy to restore. From natural ingredients like lemon and baking soda to peroxide treatments, these simple methods help your tiles look fresh, bright, and almost brand new — without heavy scrubbing.