01 Why Can't I Get My Grout Clean by Scrubbing?
Because grout is porous — and scrubbing only cleans the surface. Grout is full of microscopic pores and crevices that trap dirt, grease, soap scum, and bacteria deep below the surface, where a brush and mop can't reach. Worse, many household cleaners leave a sticky residue that actually attracts more dirt, and harsh products like bleach can break down the grout over time. Professional cleaning uses high-pressure steam to flush grime out of those pores, then seals them so dirt can't settle back in.