Yes, bleach can clean grout, especially stained white grout.
It should be used carefully because it is strong and can damage some surfaces.
Can you clean grout with bleach?
TL;DR
Yes. Bleach can clean grout, but use ventilation and never mix it with other cleaners.
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Bleach can lighten stains and kill mildew on some grout, but it may be too harsh for colored grout, natural stone, or delicate finishes.
Use it according to the label, ventilate the room, and keep it away from vinegar, ammonia, and acidic cleaners.
For routine cleaning, a milder grout cleaner or baking soda paste may be enough before reaching for bleach.
Bleach can work on grout, but it is a strong tool. Use it carefully and only where it belongs.
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