For heavily soiled grout, mix baking soda and 3% hydrogen peroxide into a paste. Apply it to the grout lines and scrub with a stiff-bristled brush, toothbrush, or specialty grout brush. Let it sit for 10–15 minutes, then wipe clean with warm water to remove all residue.
For extremely dirty or stained grout, use a DIY paste of baking soda and 3% hydrogen peroxide (mixed to a runny toothpaste consistency) or a professional-strength acidic cleaner. Apply the cleaner, let it sit for 5 to 10 minutes to break down the grime, scrub thoroughly with a stiff-bristled brush, and rinse well.
How to Clean White Grout
Vinegar can absolutely damage your tile and grout over time. While ceramic and porcelain tiles are highly durable, the acidity in vinegar can erode, etch, and discolor cement-based grout. Natural stone tiles (like marble, travertine, and limestone) are highly vulnerable and can be severely etched by acidic cleaners.
Professionals use heavy-duty, high-pressure extraction machines and specific chemical formulas (like alkaline cleaners for grease, or acidic formulas for deep stains) to strip away grime without scrubbing by hand. For regular maintenance or everyday jobs, they mix baking soda and hydrogen peroxide.
Never clean unsealed grout with pure bleach, and avoid all highly acidic products like vinegar, lemon juice, or toilet bowl cleaners. Acids corrode the porous cement surface over time, leading to cracking. Additionally, skip abrasive scrubbers and oil-based soaps, which can permanently scratch the tile or leave a sticky residue.
Stanley Steemer cleans tile and grout using a proprietary pH-balanced cleaning solution and a high-pressure, hot-water extraction process.
Yes, Dawn dish soap is a highly effective, safe cleaner for tile grout. Because it is a neutral cleaner, it cuts through grease and surface dirt without damaging or discoloring the grout, making it ideal for routine maintenance.
No, standard 3% hydrogen peroxide does not damage most types of tile grout. Because it acts as a mild oxygen bleach, it safely sanitizes, brightens, and kills mold without the harsh, corrosive effects of chlorine bleach.
For 18-year-old light-colored grout, deep grime and mildew are typical. To restore the original color without damaging the grout, use a homemade paste of 3/4 cup baking soda and 1/4 cup 3% hydrogen peroxide. Scrub the mixture into the lines using a stiff-bristled brush or an old toothbrush, let it sit for 10 minutes, and rinse thoroughly.
The "best" grout cleaner depends on the type of dirt you are fighting. For heavy, ground-in floor grime, Zep Grout Cleaner and Brightener is widely considered the top commercial choice. For bathroom mold and mildew, bleach-based sprays or a DIY hydrogen peroxide and baking soda paste are highly effective.
Vinegar & Baking Soda
Everyday tile and grout cleaning can turn your grout dingy brown. This might sound strange, but regular cleaning of your tiled surfaces is part of the reason your grout is turning brown. When we mix household cleaners and detergents with water to clean our tile and grout, we contribute to the dinginess we see.
Waiting too long to wipe grout could result in unsightly grout haze. Don't wait too long to wipe off grout!
Bleach is highly effective at whitening and disinfecting grout, but it should be used with caution. Regular or high-strength bleach can erode the grout's porous structure over time, causing it to become brittle, and can permanently discolor colored grout.
Baking Soda and White Vinegar
Sprinkle it on the worst areas and let it sit for a while. It helps lift stains and, more importantly, odours. Combine it with a bit of vinegar for tiles and watch the dirt lift as if by magic. White vinegar, diluted with water, is a lifesaver for many floor types (tiles, laminate, vinyl).
For a highly effective and safe deep clean, mix 3% hydrogen peroxide and baking soda into a paste. Scrub the paste into the grout lines using a stiff bristle brush or a toothbrush, let it sit for 10 minutes, and rinse thoroughly to remove all residue.
Yes, steam cleaners are highly effective at cleaning grout. The combination of high-temperature vapor and pressure naturally melts away grease, loosens trapped dirt, and kills bacteria without the need for harsh chemicals.
Professional grout cleaning costs between $𝟎.𝟓𝟎 and $𝟑.𝟓𝟎 per square foot, with most homeowners paying an average of about $𝟓𝟎𝟎 per room. For smaller jobs, expect a flat minimum fee of $𝟏𝟎𝟎 to $𝟏𝟓𝟎.
Yes, Dawn dish soap is excellent for cleaning and maintaining grout. Because it is a powerful degreaser, pH-neutral, and non-abrasive, it effectively breaks down everyday dirt and grime without damaging or discoloring the grout lines.
Yes, vinegar can absolutely damage grout. Because vinegar contains acetic acid, frequent or prolonged use can break down, etch, and dissolve cement-based grout over time.
Yes, you can use a Magic Eraser on grout. It acts like micro-sandpaper, making it highly effective at lifting stubborn dirt, grime, and mildew. However, because it is abrasive, you should scrub gently to avoid etching the grout or scratching surrounding tile.
Yes, hydrogen peroxide is excellent for cleaning and whitening grout. Because it acts as a mild, natural bleach without harsh chemicals or toxic fumes, it easily lifts set-in stains, mold, and grime from porous surfaces.
Yes, you can absolutely mix white vinegar and Dawn dish soap together. Combined, they create a highly effective, DIY all-purpose cleaner. The vinegar cuts through hard water and mineral deposits, while the Dawn breaks down grease and grime.
The "lazy" shower cleaning hack involves keeping a soap-dispensing dish brush filled with half dish soap (like original Blue Dawn) and half white vinegar directly in your shower. You simply scrub down the shower walls, tub, and glass in under a minute while already in the shower or waiting for your hair conditioner to soak.