How to Remove Dark Spots from Grout

1. Create a paste. Mix equal parts baking soda and vinegar to form a paste. Depending on the size of the area you're treating, you might need to make more or less of the paste.

2. Apply the paste. Use a toothbrush or another small brush to apply the paste to the grout lines. Be sure to work it into all of the cracks and crevices.

3. Let it sit. Allow the paste to sit for at least 15 minutes. This will give the baking soda and vinegar time to work their magic.

4. Scrub the grout. After 15 minutes, use the toothbrush to scrub the grout lines. The baking soda and vinegar should have loosened up the dirt and grime, making it easy to remove.

5. Rinse the area. Use clean water to rinse the area thoroughly. Be sure to remove all of the paste.

6. Repeat as necessary. If the grout lines are still not clean, you can repeat the process as needed.

Method 2: Using Hydrogen Peroxide

1. Apply hydrogen peroxide. Pour hydrogen peroxide directly onto the grout lines. Be sure to saturate the grout completely.

2. Let it sit. Allow the hydrogen peroxide to sit for at least 30 minutes. This will give it time to bleach the grout and remove the stains.

3. Rinse the area. Use clean water to rinse the area thoroughly. Be sure to remove all of the hydrogen peroxide.

4. Repeat as necessary. If the grout lines are still not clean, you can repeat the process as needed.

Tips

- Wear gloves when working with baking soda and vinegar, as they can both cause skin irritation.

- Be sure to rinse the area thoroughly after using any cleaning solution, as they can all leave behind residue that can attract dirt and grime.

- If you have stubborn stains on your grout, it's best to hire a professional cleaning company. They'll have the experience and expertise to remove the stains without damaging your grout.