There are a few ways to deep clean tile floors and grout. You can use a steam cleaner, which will loosen the dirt and gunk from the tiles and grout. You can also use a vinegar or baking soda solution to scrub the tiles and grout. Lastly, you can use a bleach solution to clean the tile floors and grout. However, be sure to rinse the bleach solution thoroughly afterward, as it can be harmful if left on the floor.

The best way to deep clean tile floors and grout is to use a mixture of baking soda, vinegar, and water. First, sprinkle the baking soda over the floor and let it sit for a few minutes. Then, pour vinegar over the baking soda and let it foam up. Finally, use a mop or sponge to wipe away the baking soda and vinegar. For tough grout stains, you can also use a toothbrush to scrub them away.