How To Clean Shower Grout Mold

Mold grows on the grout between the tiles in bathrooms, laundry rooms, kitchens, and basements. It can be revolting, and if adequate, prompt notice and action are not taken, it could turn into a greater health problem. 

Mold flourishes in damp environments like bathrooms and kitchens, and regular cleaning may not be sufficient to eliminate it from the grout. Instead, they typically form on the tile and increase rapidly due to the constant moist and humid conditions and lack of air circulation.

 Allowing mold to grow would harm the aesthetic and pose a significant health concern to all tenants and users of the facility. The most uncomplicated technique to clear grout mold is, to begin with, a simple cleaning chore and work your way up to using chemicals. 

You can stop grout mold from reproducing. It can be accomplished by caulking the tub’s edges or applying sealant between tile grout after a year or two of use. That will help to close any gaps and leave less room for mold to grow. Even better, You can also use a DIY cleaning by spraying the tile with a mixture of vinegar and water at regular intervals. Mold will build at a slower rate as a result of this.

What Is Mold

Mold commonly found in the bathroom is also known as black mold, and it has different species of fungi that grow faster in warm and moist conditions. The commonest of it is the Stachybotrys chart arum. This type can spread through the entire room quickly within 24 to 48 hours. It can grow to the size of one square inch per day.

The smelly and dark black/green color mold is not harmful. Still, release dangerous toxic into the environment making the occupants or users of the facility breathe in unhealthy air that can make them have respiratory issues if not addressed. 

Common cold and coughing, breathlessness, a sore throat, nose bleeds, and runny nose may be the symptoms of black mold. In addition, people who have lung diseases and weakened immune systems are at greater risk of being affected by the continuous breathing of the toxins.

Effective Ways to Prevent Mold in Grout

Mold growing on the grout in your kitchen or bathroom not only looks old and unkempt, but it also poses serious health risks to you and your family, as well as threatening your home’s structural integrity.

Discover an effective technique to keep mold at bay to avoid such difficulties and save money and effort – either remove it from the grout as soon as you find it or, better yet, prevent it from forming in the first place.

  • For several hours, leave the bathroom doors and windows open. After a shower or steam bath, leave the bathroom doors and windows uncovered. so that moisture can escape the space instead of condensing on the walls and tiles
  • After showering, operate the bathroom exhaust fan for at least 30 minutes. That will allow any moisture in the bathroom to evaporate.
  • After a bath, wipe off the bathroom doors and shower walls with a damp cloth. You can use a hand towel or a washcloth to get it done. A washcloth is preferable since it can get to the tile grout and corners.
  • After bathing, hang your bath towels to dry. After each usage, make sure your bath towel is completely dry. Wet towels contribute to the bathroom’s humidity, which is conducive to mold formation.
  • Seal the grout: one of the numerous strategies to prevent mold is to seal the grout. Using a silicone-based grout sealant, apply one or two coats to dry grout. It will greatly slow the rate at which moisture penetrates the porous grout, causing it to become less wet and dry much more quickly.
  • When repainting your bathroom and installing new tiles, use mold-resistant paint and grout with anti-fungal ingredients. The more you do to minimize mold from growing in the grout, the easier it will be to keep your bathroom in good shape. If mold appears in the grout lines despite your efforts, you must remove it as soon as possible.
  • Repair leaking faucets and showerheads. 

How To Clean Shower Grout Mold

To clean the shower’s mold, you will first need to protect your hands with gloves and a goggle to safeguard your eye and ensure enough ventilation in the shower.

How To Clean Shower Grout Mold
How To Clean Shower Grout Mold
  1. Clean Soap Scum from Tiles First

Firstly, wipe down the shower without scrubbing by applying warm water and a squeegee or paper towels to loosen up dirt or soapy film covering the shower tiles. Secondly, You can use a natural grease remover such as lemon juice with a mild bristle brush; this will loosen the tick or firmed film that is difficult to remove with warm water on the tiles. 

This process will make it easier to scrub mold and dirt in the grout by using less soap scum and loosening up mold. Rinse up the tiles with warm water, then dry it up, and may apply other mild or harsh chemicals

2. Remove mold from Grout Using Mild Cleaners

For mold to be removed from grout, you have several options to choose from depending on your choice or the availability of mild chemicals such as bleach, white vinegar, and hydrogen peroxide. Harsh chemicals are not advised to be used in enclosed conditions.

3. Bleach

One of the commonest methods of removing mold from grout is using domestic bleach such as chlorine. This domestic bleach usually contains sodium hypochlorite. Oxygen bleach contains hydrogen peroxide and so on but ensures you are well protected by wearing a mask to prevent inhaling toxic fumes. 

The bleach is applied directly to the mold by scrubbing well using a stiff bristle brush. If the stiff brush is not available, an old toothbrush can also serve the same purpose. 

The bleach applied to the mold surface can stay on for up to thirty minutes with the shower well ventilated. Warm water is advised to be used in rinsing the bleach away. In the case where your grout is colored, the use of bleach may not be wise enough because the grout may change color as a result of a reaction of the bleach

4. White vinegar: 

Vinegar is a natural liquid with a bitter taste made from a malt type of grain. You can use it on the colored grout because of its natural cleaning tendency, and this will remove the mold from the colored grout without discoloring it. 

A spraying bottle can be used to apply the vinegar to the mold, and if there is no bottle spray, don’t get yourself worried as you can use a cloth to apply the vinegar; all it needs is to remain on the surface for at least an hour before rinsing it with warm water. You can repeat this process if you are not satisfied with the level of its action

5. Baking soda: 

Baking soda is another cleaning agent that can do the magic of removing mold from the grouts; all you need is to mix the desired amount of tablespoon of baking soda, add water, and mix it up until you get a paste. Then, you can apply it directly to the mold on the grout allowing it to stay on it for up twenty minutes, after which you scrub well either with a mild bristle brush or a toothbrush using warm water to rinse away.

How To Whiten Grout

After a rigorous cleaning of the grout with the use of natural cleaning agents and chemicals, and still appears that some mold had formed a permanent stain on the grouts, particularly when you had removed the black mold. 

The best way to get the grout whitened is by the use of special grout paint or ink. This paint is specially designed to paint the stained part of the grouts and improve the shower’s aesthetic. It also prevents the mold from returning to the grouts. That’s to the anti–fungi and water-resistance properties of the paint. 

Before applying the paint, ensure there are no mold remnants on the grouts, then paste masking tape on the tiles to prevent the color from getting to the tiles. The brush to be used to apply the paint should be of the same width as the grout; if not, it may add to your work, or you will extend the painting to the tiles.  

For a smaller grout, you may use a grout pen that has different nibs. However, to get a proper and easy painting, you will have to press the pen’s nib firmly to the area of the grout.


Natural cleaning chemicals are the finest way to get rid of mold in the grout. However, because prevention is better than cure, you must follow the above preventative steps. If you already have mold grout in your bathroom, you must address it immediately so that it does not spread further and cause costly damage to your property.

To avoid mold now and in the future, make sure you clean your bathroom thoroughly every time you use it.

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