Mix a 50/50 solution of water and vinegar in a spray bottle. Shake gently until the liquids are thoroughly combined. Spray the solution onto the grout stain. Let the solution sit for at least five minutes.
Secondly, will vinegar and water remove grout haze?
If your tile is porcelain or ceramic, try a vinegar solution to remove grout haze. (With slate or stone, this is a no-no! Its acidity—which comes in handy when cutting through grease and mineral deposits—can damage these porous surfaces. Skip to Method 4.)
Also to know is, how do professionals clean grout?
If you want to clean grout without exposing yourself to toxic debris, use white vinegar. White vinegar and water mixed with a 1:1 ratio are very effective at removing stains from grout. Grout commonly comes in the form of a paste-like solution that fills the gaps in between tile.
Can vinegar ruin your grout?
Vinegar can indeed ruin grout.
Unfortunately, vinegar penetrates unsealed grout by seeping into the air spaces within the material. Once lodged in these spaces, vinegar will corrode grout with the passage of time. The grout will eventually wear off.
Clean company itself touts the Magic Eraser is an excellent product for removing grout haze and lifting longstanding stains on bathroom tiling.
If you notice grout sealer falling on the tile surface, it should be removed instantly with a clean rag while grout sealing. For best results, soak a sponge in warm water and wipe the sealer off with it. Then, rub the surface with a vinegar solution made of a few drops of water and white vinegar.
Depending on how dirty your grout is, water alone might do the trick. If you need to take it up a notch, mix in ½ cup of baking soda, ¼ cup of hydrogen peroxide, and a teaspoon of dish soap. Apply to grout and wait a few minutes before scrubbing and rinsing.