Step 2: Prepare a Gentle Cleaning Paste
Mix baking soda with a small amount of water until it forms a thick paste.
Apply the paste directly onto the grout lines, making sure they are completely covered.
Allow it to sit for several minutes before scrubbing so it can begin loosening embedded dirt.
For greasy kitchen grout, adding a few drops of mild dish soap to the mixture may help break down oily residue.
Step 3: Scrub the Grout
Using a stiff nylon brush or an old toothbrush, scrub along each grout line using short back-and-forth motions.
Work in small sections rather than cleaning the entire floor at once. This makes rinsing easier and prevents the cleaning mixture from drying on the surface.
Avoid excessive force, especially if the grout is old or beginning to deteriorate.
Some stains require a little extra attention. The next steps explain how to safely tackle stubborn discoloration and keep grout cleaner for much longer.
Step 4: Rinse Thoroughly
Once you’ve loosened the dirt, wipe the area with a damp microfiber cloth or rinse with clean water.