Professional Grout Cleaning Methods Depend on Tile and Grout Condition
https://mytilecarenotes.readspirex.com/posts/professional-grout-cleaning-methods-depend-on-tile-and-grout-condition
The best way to clean grout really depends on what you're working with. For tougher stains on darker grout, a gentle bleach solution or hydrogen peroxide paste often works. With lighter grout or more delicate tile, steam cleaning or a specific pH-neutral cleaner is safer to avoid damage. A soft brush is safer than a stiff wire brush on rough tiles. Testing on a small hidden area first is key—it saves time and protects your floor.