3. Tiles (Especially Natural Stone)
Vinegar is not suitable for cleaning natural stone tiles like marble, travertine, or granite. Its acid can erode the protective layer over time, leading to dullness, staining, and surface etching.

Even ceramic or glazed tiles can be affected, as vinegar may weaken grout lines and damage the sealant, making the surface more vulnerable to water and stains.

Opt for pH-neutral or tile-specific cleaning products to protect tile surfaces.

4. Fabric Objects and Surfaces
While vinegar is sometimes used to deodorize fabrics, it can weaken delicate fibers like silk or wool. It may also cause color fading, staining, or leave an unpleasant lingering smell if not rinsed thoroughly.

To be safe, use fabric-specific cleaners or test a small hidden area before applying vinegar to any fabric.

Conclusion
Although vinegar is a versatile and natural cleaning solution, it’s not safe for everything. Avoid using it on iron, wood, natural stone, and delicate fabrics to prevent unintended damage and ensure your surfaces stay in top condition.