or microfiber cloth.
Dry grout makes it much easier to identify any remaining stained areas that may benefit from another round of cleaning.
Step 5: Address Stubborn Stains
Some grout stains may have developed over many months or years and may not disappear after a single cleaning.
For persistent discoloration, hydrogen peroxide or other grout-safe cleaners may help improve the appearance. Always test any stronger cleaning solution in a small, inconspicuous area first to ensure it will not damage the grout or tile finish.
Several gentle cleaning sessions are generally