Grout discoloration is a common issue in tiled areas, caused by a variety of factors. Over time, moisture, dirt, and household products can lead to grout staining. Mold and mildew thrive in damp environments and can cause black or green discoloration. Inadequate sealing allows liquids and dirt to penetrate grout, making it susceptible to discoloration. To clean discolored grout, start with a gentle scrub using a mixture of water and baking soda. For tougher stains, vinegar or hydrogen peroxide may be effective, but avoid using them on colored grout, as they can fade it. Regular maintenance, sealing, and proper ventilation can help prevent grout discoloration in the first place.
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