Tile and grout are difficult to clean because they are porous. This means that they can easily absorb dirt, oils, and other contaminants. In order to clean them properly, a professional will use a specialised tile and grout cleaner. This cleaner is able to penetrate the pores of the tile and grout and break down the dirt and oils that have accumulated over time. It is then removed with a wet vacuum or steam cleaner.

The process of cleaning tile and grout generally involves the use of a detergent or soap, water, and a brush. The detergent or soap is used to create a lather, which is then applied to the tile and grout. The lather is allowed to sit for a period of time, typically about five minutes, and then it is rinsed off with water. The process is then repeated until the tile and grout are clean.