While this baking soda method does require a fair bit of scrubbing, the results are well worth it.
Some people recommend using white vinegar to clean grout, but its acidic nature can cause damage to the porous material.
Instead, baking soda is only a mild abrasive, loosening dirt on your grout without scratching your tiles.
To use baking soda to clean my grout, I mix three parts baking soda with one part water, which creates a lovely thick paste. If the paste is too thick, more water can be added, and if it is too runny, more baking soda should be used.
With an old toothbrush, I applied it to the stained grout areas and left it to sit for 10 minutes. This was important as it gave the baking soda paste time to sink into the dirt and make it easier to remove.
I then used the toothbrush to begin scrubbing the paste over the grout. As soon as I started to scrub, I noticed that the white paste was turning grey, meaning that the baking soda was removing the dirt from the grout.
After less than a minute of scrubbing, I could see that the stains were vanishing and the grout was turning white again.
After scrubbing the grout, I used a damp microfibre cloth to wipe away the baking soda paste. This is an important step as it prevents a film over the tiles, which can happen when the area dries.
