What are the most effective and safe methods for removing mold and mildew from my bathroom shower walls?

To remove mold from shower walls, start by spraying undiluted white vinegar directly onto the affected area. Allow the vinegar to sit for 30 to 60 minutes. This mild acid helps penetrate the surface to address the fungi. After waiting, scrub the area thoroughly with a stiff brush and rinse the surface with clean water.

If you encounter stubborn mold within the grout, apply a thick paste made of baking soda and water over the stained area after the vinegar treatment. For best results, avoid using bleach on porous grout because it often fails to kill the mold roots deep inside the material.

Preventing mold recurrence is essential for a healthy home. Always run your exhaust fan during your shower and for at least 30 minutes afterward to reduce humidity. You should also use a squeegee to remove standing water from the walls after every use and ensure any leaking fixtures are repaired immediately. Please note that if mold has penetrated behind your tiles or into the subwall, you will likely require professional remediation to ensure the area is completely safe.