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Homemade Toilet Cleaning Bombs

10.16.23

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This post may contain affiliate links. These help support this website.

These homemade toilet cleaning bombs use the power of citric acid to clean your toilet.

All you need is a few other ingredients and a silicone mold to form these little tablets.

Here is how you can make them at home too.

Homemade Toilet Cleaning Bombs

easy DIY toilet cleaning bombs on chemistry cachet

You can check out our instagram video here. Be sure to follow us on IG for fun videos and tips

Ingredients:

  • 2 cups baking soda
  • 1/2   cup citric acid
  • 2 tbsp dish soap
  • Optional: 30-40 drops of essential oil for scent
  • Silicone mold 

Directions:

  1. In a bowl, mix the baking soda and citric acid until combined.
  2. Next, drizzle in the dish soap. 
  3. Using a spoon or gloved hands, gentle mix until the consistency is similar to cookie dough. You want it to be moldable. If your mixture seems a little dry for some reason, add in another drizzle of dish soap.
  4. Now you can add in your essential oil and do one final, gentle mix.
  5. Press mixture into the silicone molds and allow it to dry overnight.
  6. Once dry, take the toilet bombs out and add to a container preferably one with a lid.

Shop The Ingredients In Our Amazon List:

To make it easier, I made an amazon list just for these toilet bombs. You can shop all the ingredients here.

How To Use These DIY Toilet Cleaning Bombs:

Once a week, add a toilet bomb to the toilet. Let it fizz and react, then sit for about 5 minutes. Clean the toilet with a toilet brush making sure to get this solution all over the toilet bowl.

I like to use these in between regular toilet cleaning with our DIY toilet bowl cleaner. 

How Do These Simple Homemade Toilet Cleaning Bombs Work?

This mixture is so simple to make, but the science is very cool!

If you remember, we have talked about using an acid + a base for cleaning many times on Chemistry Cachet. One of the most common acid and base reactions is using baking soda and vinegar. It is a very misused solution, but it has benefits. You can read more about using vinegar and baking soda in this post.

Citric Acid + Baking Soda

When you combine citric acid plus baking soda, then add it to water, the reaction produces carbon dioxide and a salt. 

The benefit of this is when they react together to form the carbon dioxide, you get a solution that breaks up grime and stains. 

Since citric acid is a powder and so is baking soda, this makes it a great option for creating bombs that will fizz in water. This is also how many homemade bath bombs are made.

A similar reaction is when we used baking soda, then applied vinegar for our homemade carpet cleaner.

You can learn more about how citric acid works in this blog post. You can get more information about baking soda in this post.

So, you can mix up an acid and a base?

When you mix a powdered base with a powdered acid, they won’t react until they are mixed in water. This is what makes these a great option for making tablets. If you mix a liquid acid, like vinegar, with a powdered base, like baking soda, it will react right away. You would never want to bottle vinegar and baking soda because the only benefits of using them together is the reaction itself. This is why in the carpet cleaner we mentioned above, they are applied in separate steps.

Dish Soap

The dish soap in this works as a binder to make the toilet bombs moldable, but it is also a surfactant. When the bombs hit the water, react and fizz, it releases the dish soap which will give you some scrubbing power. As you know, I prefer Dawn for DIY cleaners because the cleaning power is better than most others I have tested. But for this recipe, you can use any dish soap you like. The main reaction is the citric acid and baking soda mixture for cleaning.

Essential Oil

I always use the Purify essential oil for cleaning toilets because it smells really fresh. It can help with odors too! You can use another strong essential oil in this recipe if you have one on hand.

More Toilet Cleaning Tips

We shared a blog post with all of our favorite toilet cleaning hacks in this post.


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Filed Under: Cleaner Tagged With: diy toilet bombs, homemade toilet bombs, homemade toilet tablets, toilet cleaning bombs

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Comments

  1. Aussie Jo says

    October 16, 2023 at 3:09 pm

    Damn sounds like a bloody good idea, I think my daughter would like this information

    Reply
    • Alexis says

      October 17, 2023 at 4:04 am

      They work so well!

      Reply
  2. Sheri says

    November 1, 2023 at 2:00 pm

    BUT, does these sanitize the toilet bowl?
    And if yes, what makes it sanitize the bowl?

    Reply
    • Alexis says

      November 2, 2023 at 5:27 am

      No, disinfecting is a separate step. We recommend using pure 70% rubbing alcohol, hydrogen peroxide or Force of Nature. Here are more toilet cleaning hacks to learn more.

      Reply
  3. Abby says

    January 19, 2024 at 7:54 pm

    I’m reading all your cleaning articles with interest! Does having baking soda in the mix affect the citric acid’s ability to remove/prevent limescale under the water line? Thank you

    Reply
    • Alexis says

      January 20, 2024 at 5:09 am

      The baking soda and the citric acid have to react together to form carbon dioxide which breaks up all the hard water, stains, etc. The reaction is the most important part of this recipe. Due to the ratios though, it doesn’t completely “cancel” out the citric acid’s benefits 🙂

      Reply
  4. Polita says

    September 27, 2024 at 1:04 pm

    Hi, have a question can I use vinegars instead citric acid?

    Reply
    • Alexis says

      September 28, 2024 at 6:18 am

      Not for this recipe, it will need to be the powder version of an acid in order to keep the tablets from activating until they get into water. The acid and base will react when they are dropped into the toilet.

      Reply
  5. Katie F says

    September 28, 2024 at 11:22 pm

    Hey! Do you think I could use this in the toilet tank? I have such hard water, and the mineral build up in the “jets” is getting bad. I’ve been able to use citric acid to successfully chelate the build up on all accessible areas, but the drain tubes (between the tank and the bowl) are more difficult. Citric acid alone isn’t working, probably because is doesn’t spend enough time in direct contact with the metal ions…it just flushes right through. Haha. I’m thinking that the carbon dioxide formation would help a lot, but I’m having difficulties thinking through how it might react while in the tank itself. Most of the (non-porcelain) tank components are plastic, plus some latex, rubber, stainless steel, and brass…the metals being my biggest concern…but maybe if I minimize the time spent in the tank? What do you think? Or do you have a different approach?
    Thanks!!

    Reply
    • Alexis says

      September 30, 2024 at 5:45 am

      You can definitely try this in the toilet tank! It needs to be scrubbed once it fizzes out. The key to hard water removal and mineral build up is breaking it apart, but then being able to scrap or scrub it off. Another option is to fill the tank with vinegar and allowing it to sit for 30 minutes to an hour. Sometimes the best way to get build up off is the acid having a long time to work!

      Reply
  6. Katherine says

    October 2, 2024 at 4:24 pm

    Could I also use sodium percarbonate with this mixture?

    Reply
    • Alexis says

      October 3, 2024 at 12:59 pm

      Yes you can, but you might need to adjust the dish soap ratio to make sure it can still be molded 🙂

      Reply
      • Katherine says

        October 3, 2024 at 4:47 pm

        Thank you! I wasn’t sure because I read elsewhere that I shouldn’t mix & store sodium percarbonate with citric acid. Also that the sodium percarbonate only activates with warm/hot water.

        Reply
        • Alexis says

          October 4, 2024 at 5:46 am

          Many store-bought products like non-toxic dishwashing tablets or laundry mixes contain both sodium percarbonate and citric acid. It has a similar pH as baking soda, so it is fine. It activates in liquid, so when it drops in toilet, it will start to dissolve.

          Reply

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