Mold in your shower grout is not only unsightly but also a health hazard. Fortunately, hydrogen peroxide is a natural mold killer and can clean mold in shower grout quickly and easily. In our previous article, we discussed various ways to clean bathtub grime. In this article, we’ll show you how to clean mold in shower grout with hydrogen peroxide.

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You will need:
- Hydrogen peroxide
- Bucket
- Scrub brush
- Old toothbrush
- Gloves
Steps by step guide:

1. Mix equal parts hydrogen peroxide and water in a bucket. You can also just use hydrogen peroxide, but be aware that it may be more potent and should be used in smaller amounts.
2. Use a scrub brush to scrub the moldy grout with the hydrogen peroxide mixture. Be careful not to disperse it onto your walls or tub, as it can discolor them.
3. Use an old toothbrush to get into any tight spaces. Scrub the grout well until it is completely covered with the mold-killing solution.
4. Allow the mold-killing solution to sit on the grout for 10-15 minutes.
5. Scrub off the hydrogen peroxide/water mixture
6. Rinse the area with clean water and allow it to dry completely before using the shower again.
7. Repeat as necessary.
This method is safe, and hydrogen peroxide is a commonly available household item. It’s important to clean mold in shower grout as soon as you notice it, though. The longer mold grows in your shower grout, the harder it will be to remove.
Precaution: Wear gloves while cleaning. Hydrogen peroxide may irritate sensitive skin. Test the hydrogen peroxide first on a small area, and be sure to avoid discoloring your grout or tiles.
Why does mold grow in shower grout?

Mold can grow in shower grout for a variety of reasons. Poor ventilation, high humidity, and moisture accumulation are the most common causes. It can quickly spread and become difficult to remove if you don’t clean mold in shower grout regularly.
Why do you need to clean mold in shower grout?

Mold can be hazardous to your health. It may trigger allergies, cause respiratory problems, and even lead to more severe illnesses. It’s important to clean mold in shower grout as soon as you notice it to avoid any health risks.
Is hydrogen peroxide good to clean mold?
Hydrogen peroxide is a natural mold killer. It’s effective at killing both black and white mold, and it’s gentle enough to use on most surfaces. It’s also a cheap and readily available household item.
Can I use hydrogen peroxide in my tub?
Yes, hydrogen peroxide can be used to clean most surfaces. It’s safe for most surfaces, but first, test it on an inconspicuous area. Don’t use hydrogen peroxide after bleaching a surface, and be careful to avoid spilling it on your skin or clothing.
Where can I buy hydrogen peroxide?
Hydrogen peroxide is available at most drugstores and supermarkets. It’s usually sold in a 3% or 6% solution. Be sure to buy hydrogen peroxide that is intended for household use.
Here are some commercial hydrogen peroxide products specially made for grout cleaning:
- Green Performance GP107 Peroxide Cleaner
- Multi-Purpose – Extra Concentrated Peroxide Cleaner
- Deep Cleaning Natural Grout Cleaner
- All Purpose Hydrogen Peroxide Cleaner with Citrus Fragrance
What are some other ways to clean mold?
There are several ways to clean mold. Some of the most popular methods include using bleach, vinegar, or baking soda. Each method has its own advantages and disadvantages, so be sure to choose the one that best suits your needs.
Final Thought:
An excellent way to clean shower grout and prevent mold from growing in it is to use a squeegee or a towel after you use the water in the shower. This will help to keep the moisture from accumulating and will also help to speed up the drying process. If you see any mold in between your tiles, be sure to use hydrogen peroxide (though not too much) and scrub it away. This will prevent the mold from spreading.