Here are six powerful ingredients to whiten blackened floor joints

3. Hydrogen peroxide
If the darkening of the joints is due to mold, mix water and 3% hydrogen peroxide. Spray the mixture on the joints and let it sit for 45 minutes before rinsing.

4. Epsom Salt
Epsom salt is useful for fighting bacteria and restoring whiteness to the grout. Clean the joints with a damp cloth with coarse salt and leave it overnight before rinsing the next day.

5. Borax
Borax, available in supermarkets, is a natural disinfectant and deodorizer. Make a paste with borax and water and use it to clean the joints with a sponge or brush.

Conclusion
With these natural and effective ingredients, you can whiten ceramic joints easily and economically. Remember to test them on a small area first and rinse well after use. With a little effort, you can restore the beauty of your ceramic floors.