Dull tiles and dark grout lines make even a clean bathroom look dirty. The fix is cheap and takes less than an hour. Here’s the method that actually works.
What You’ll Need
- Baking soda
- White vinegar (in a spray bottle)
- Dish soap
- An old toothbrush or grout brush
- A microfiber cloth or mop
Step 1: Clear and Rinse
Remove bottles and items from the tiled area. Rinse the tiles with hot water — a shower head on full heat works perfectly. This loosens surface soap scum before you scrub.
Step 2: The Baking Soda Paste
Mix baking soda with a little water into a thick paste. Spread it over the tiles, pressing it into the grout lines. For walls, apply with a sponge. Let it sit for 15–20 minutes. Baking soda is mildly abrasive, so it scrubs without scratching.
Step 3: Vinegar Spray
Spray white vinegar generously over the baking soda paste. It will fizz — that’s the reaction lifting grime out of the grout. Let the fizzing finish (about 5 minutes).
Step 4: Scrub the Grout Lines
Take the old toothbrush and scrub along the grout lines, not across them. This is where the transformation happens — you’ll see the original grout color come back. For large floor areas, a stiff-bristled brush on a long handle saves your knees.
Step 5: Rinse and Squeegee
Rinse everything with hot water until no residue remains. Then — this is the pro move — squeegee the tiles. Standing water leaves mineral spots as it dries; a 30-second squeegee keeps tiles shiny for weeks.
Step 6: Shine the Tiles
For extra shine on wall tiles, wipe them with a microfiber cloth dampened with a 50/50 mix of water and vinegar, then buff dry. Avoid this on natural stone tiles (marble, granite) — vinegar can etch stone. For stone, use dish soap and water only.
Keep Them Clean Longer
- Squeegee shower walls after every shower (30 seconds, huge payoff).
- Run the bathroom fan for 20 minutes after showering to prevent mold-friendly moisture.
- Spray tiles weekly with the vinegar solution to stop soap scum from building up.
The Bottom Line
Baking soda paste plus vinegar spray plus a grout scrub is all it takes. Do it once properly, then maintain with a weekly spray and daily squeegee — your tiles will stay looking new with almost no effort.