The answer to 'how to maintain grout' is to regularly clean and seal your grout to prevent stains, discoloration, and damage. Start by sweeping or vacuuming the grout to remove any loose dirt or debris. Then, use a grout brush and a mild detergent or specialized grout cleaner to scrub the grout lines. Rinse the area thoroughly and allow it to fully dry. Once dry, apply a grout sealer to create a protective barrier that will make the grout easier to clean in the future.
It's recommended to clean and seal your grout every 6-12 months, depending on the amount of foot traffic in the area. In high-traffic zones, you may need to do this more frequently. If you notice any cracks, crumbling, or other damage to the grout, it's best to call a professional cleaning service to assess and repair the issue.