Time. Make a baking soda paste with water and spread over tile and grout. Leave on overnight and spray with vinegar in the morning. Follow with your regular morning shower and rinse off any baking soda/vinegar residue.
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.
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. If, however, you have sealed your grout on a regular basis, the vinegar won't be an issue.
Vinegar can indeed ruin grout.
The grout will eventually wear off. So you should take not to apply vinegar for cleaning purposes if you have unsealed grout in the area.
While vinegar is a standard household cleaner, you shouldn't use it to clean unsealed grout. Vinegar seeps into the air spaces in the grout, weakening them. With time, the vinegar deteriorates the grout by etching it or wearing it away.
Method 2: How to Get Grout White Again with Lemon Juice or White Vinegar. Saturate the grout with lemon juice, a mild disinfectant that gets rid of grout stains naturally. You can also use white vinegar for chemical-free grout cleaning.
What do professionals use to clean grout? Whether you believe it or not, most professionals use a solution of white vinegar and water with a 1:1 ratio. This solution is often more effective than dedicated Ph-neutral grout cleaners.
Steam extraction cleaning is considered to be the most effective method of cleaning unsealed grout. The steam and detergent mixture loosens the dirt and grime before it is extracted from the pores using a vacuum. However, you might need to hire or buy a floor steamer to use this method.
TL;DR: Combine baking soda & white vinegar to create the perfect cleaning solution for tile grout. Scrub with a toothbrush and voila! For floor tiles, combine baking soda and hydrogen peroxide, apply paste, let sit, then scrub away and rinse off with warm water.
You can safely use vinegar to clean ceramic or porcelain tiles, whether they are glazed or unglazed. For other types, however, like terracotta, marble or grante, we recommend you look for ph neutral cleaner that will not harm the material.
Avoiding Damage to your Tiles
To care for the tiles properly, always avoid: harsh chemicals, such as bleach and acid, including lemon and vinegar, for routine cleaning; these can cause damage to the tiles and grout if used regularly and are also health hazards as well as posing danger to other property near the tiles.
Allow the vinegar to sit on the tile for at least eight hours. At the end of the wait period, squeeze out the paper towels and throw them away. Take a shower and the action of your feet moving about on the tile where the vinegar worked should show a remarkable transformation.
Let the grout set for 15 to 30 minutes, and wipe up the excess grout with a dense grout sponge soaked in water. (If you think it's going to take you longer than 30 minutes to grout all of the tiles and be ready to move onto cleanup, you may have to work in smaller sections.)
Here Are Some Great Ways to Clean Your Colored Grout
1. Vinegar- start with a simple solution of vinegar and water in a spray bottle. Apply it directly to the grout and let it sit for a few minutes. Gently scrub away grime with a small brush like an un-used toothbrush.
Mix together ½ cup baking soda, ¼ cup hydrogen peroxide, 1 tsp dish soap. Spoon cleaning agents onto grout and let sit for 5-10 minutes. Scrub the grout lines with a brush. Grout cleaning tip: Make sure to scrub hard to agitate the grout and cleaning solution and break up any really stuck dirt.
Make sure your tile surface is completely dry before you attempt to remove any haze. This typically takes about 24 hours. Consult your installation professional—or, if you DIY-ed it, your grout's packaging—for the exact amount of time. But do not wait more than 10 days to remove grout haze.
Do You Have to Rinse after Cleaning with Vinegar? Rinsing is not necessary! If you're simply using a vinegar and water solution to wipe and disinfect, you won't need to rinse. However, if there's also plenty of dirt and grime you're wiping away, you may also want to rinse with some extra water.
“Vinegar can kill some bacteria, but it's not a disinfectant. If you want to disinfect a surface where you've had, say, raw chicken, you need to use something like bleach,” Gayman says. “Also, vinegar needs to sit on a surface for up to 30 minutes in order to reduce bacteria.
Do not use vinegar or baking soda to clean tile grout. Alkaline cleaners are a better choice than vinegar or baking soda because grout contains cementitious mortar that can be dissolved by acidic cleaners, including vinegar. Vinegar and other acids are also a bad idea for stone tile because the acid can etch the stone.
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.