Even after mopping, tile floors with dirty grout will still look messy. Fortunately, you can easily clean grout using simple household products so your tiles look brand new again.
Make a paste of baking soda and water. Mix 3 parts of baking soda to 1 part water to make a thick paste. This versatile cleaner will work with all colors of grout, but vinegar can be harmful to some natural stones such as marble or limestone.
Apply the paste to the grout lines with your finger.
Although the baking soda isn’t harmful, wearing rubber gloves can help prevent scratches or irritated skin from the abrasive grout and baking soda.
Make a mixture of equal parts white vinegar and water and pour this into a spray bottle. Then, spray the baking soda past with the vinegar solution. You should immediately see bubbling which lets you know the natural cleaning process has begun.
Do not use vinegar if your tile is made of natural stone.
The bubbling action is a chemical reaction between the baking soda and vinegar. The reaction generally lasts a few minutes. After the bubbling has stopped the chemical cleaning action is done.
Scrub the grout lines with a brush. Use a nylon bristled scrub brush, or a toothbrush, to scrub along each grout line. Pay close attention to corners and edges to make these areas clean as well.
Use a mop and plain water to remove the baking soda and vinegar residues. Rinse your mop and change the water often during the cleaning process so you do not continue to spread the residue around the floor.