Start by spraying the grout with hot water and scrubbing with a stiff bristle brush or a grout brush to lift any dirt or grime on the surface. Using a steam cleaner (this tool is especially effective against grout stains, says Maker), apply steam directly to the grout, then use your brush to scrub in a circular motion.
Cleaning Tile Grout
Start with water and a stiff brush, and if that doesn't do the trick, try an oxygen cleaner or a mix of baking soda and vinegar followed by brushing. Deep stains may call for replacing the grout altogether.
TLDR: professional cleaners use a detailed process to wash tile and grout. First, they start by vacuuming the floor to remove dry dirt. Next, they mop the floor to remove stains. After that, a thorough steam cleaning of your tile and grout occurs.
So the answer to the titular question is vinegar. Vinegar is better for cleaning. But that's because bleach isn't intended for cleaning, but for disinfecting. And, by the way, if you want to use bleach for disinfecting, make sure the area you want to treat is clean (and rinsed clean, if you used vinegar!)
Grout that hasn't been sealed, needs to be resealed, or is in poor shape should not be cleaned with vinegar. The vinegar penetrates into the pores of the grout, further weakening the material. Over time, vinegar will deteriorate the condition of the grout by etching or wearing it away.
The easiest way to clean grout without scrubbing involves hydrogen peroxide and baking soda. Mix the two into a paste with some dish soap and apply to the grout lines. Alternatively, you can use a cleaning solution of water, vinegar, lemon juice, and baking soda.
The most common and effective homemade grout cleaner is a mixture of baking soda, hydrogen peroxide, and dish soap. Cream or tartar and lemon juice is the best all-natural solution for whitening. Avoid using highly-acidic solutions like vinegar because they can corrode grout.
Hydrogen peroxide won't damage normal tiles or colored grout. However, you shouldn't use it on polished marble. Cleaning with hydrogen peroxide and baking soda is a great way to remove stubborn stains from your grout.
Mix 3.5 cups hot water, 3 tbsp of lemon juice, 1/2 cup Baking Soda, and 1/6 cup white vinegar. Using a spray bottle, apply the mixture along the grout itself, making sure it's totally saturated. Let it soak in. After about one hour, spray the grout one more time and then mop it all away!
Distilled white vinegar is a safe, natural cleaner and disinfectant you can use all around the house. Pour or spray undiluted vinegar onto your grout and let it sit for 10 minutes before using a toothbrush, scrubbing in a circular motion. Next, rinse away the dirt and mildew.
Household cleaners that contain bleach or ammonia rank 11 to 13 on the pH scale, which means they are highly alkaline. Though alkaline solutions cut through dirt and grease, they will erode and discolor grout.
The vinegar combined with the baking soda will create a bubbly reaction, which will get rid of soap scum, limescale and mould. Be sure to work the baking soda into the grout lines, removing all build-up. Rinse the area with warm water.
Dawn and Vinegar Grout Cleaner
Heat a cup of 1-to-1 vinegar and water in the microwave for about a minute. Pour it into a spray bottle and add a cup of Dawn dish soap. Carefully spray the mixture on your grout lines. Let it sit for 5-10 minutes longer if you have really dirty grout.
In a bowl, combine 2 cups water, 1.5 cups baking soda, 1/3 cup vinegar, and 1/3 cup Dawn. Using a spoon, gently stir, making sure there are no lumps. Add the mixture to a clean spray bottle. Spray the floor with the mixture.
Avoid Vinegar and Baking Soda
Vinegar and other acids are also a bad idea for stone tile because the acid can etch the stone. Another widely praised household cleaner, baking soda, is alkaline (not acid), but it is not very effective as a grout cleaner.
Clean. The association warns against acid-based cleaners, which can eat into grout, and cleaners with oil or wax, such as Murphy Oil Soap and Pine-Sol, because they can leave a sticky residue on grout. If the alkaline cleaners don't work, the association recommends trying an enzyme cleaner labeled for use on tile.
You can also use white vinegar for chemical-free grout cleaning. Simply pour vinegar from the bottle into the cap and pour it over the dirty grout lines. Allow the lemon juice or vinegar to sit for 10 to 15 minutes. Then, scrub with a small brush or old toothbrush.
Getting in between the tiles is hard but OxiClean™ can make keeping your grout sparkling white easy. It's a great bathroom cleaner and grout cleanser.
Maybe vinegar is acidic enough to act as a sanitizer, but hydrogen peroxide is better at killing bacteria, fungus, and viruses. To disinfect a surface, you can use a 50/50 hydrogen peroxide and water solution. Spray it on a clean surface and let it sit for at least 5 minutes.