How To Clean A Toothbrush That Fell On The Floor

Oral health significance is promoted by doctors, dentists,  health organizations more and more often. Oral health can affect other vital systems in functioning your body. However, keeping oral hygiene is not seriously considered as it should be, which is so shameful.

Given that fact, people should pay more attention to maintaining the hygiene of the oral system. And the most basic step that anybody can start right now is to sanitize their oral care tools such as toothbrushes. 

In this post, let’s go through some techniques to clean your brush – the most popular tool that you use daily – so that you can sterilize them periodically, or, suppose when you feel them, you can know how to clean a toothbrush that fell on the floor.

What to do if toothbrush falls on floor?

How to Clean A Toothbrush That Fell on The Floor – 7 Simple Techniques 


The most inexpensive method to clean a toothbrush is to boil it in water for a few minutes. At the boiling degrees, which is 100 degrees Celsius or 212 degrees Fahrenheit, all bacteria and germs can be killed, leaving your toothbrush as sterile as ever. 

However, most toothbrushes are made from plastic, so it’s better to just cook it in boiling water in just a short term because the heat can melt the plastic objects. The boiling time we recommend is about 2 or 3 minutes. 

Here is what you should prepare for the procedure. 

First, take out a small pot, pour water in about half the pan. Second, turn on the stove and wait until the water boils. You can spot by seeing tiny bubbles emerging or steam evaporating. Seeing the water reaches boiling temperature, then the third step is to dip the toothbrush into boiling water so that the heat can kill all harmful bacteria and viruses if had. 

After 2 to 3 minutes, take out the toothbrush. Wash it in cold water to cool down. Then, put the brush in a dry place, and you can use the toothbrush as always.

Baking Soda

Baking soda is “the magic ingredient” for the household because of its versatility. With the special feature of boiling when interacting with water and killing bacteria with no damage to the object, baking soda is useful in maintaining and sterilizing amenities. And for cleaning toothbrushes that fell on the floor, it surely works well, too.

Considering other bacteria-killing chemical substances, baking soda is less intensive and damaging, but considering the effectiveness, baking soda provides the absolute killing result as you want. Baking soda is easy to find at any local store, cheap and safe. Given that fact, it is preferable by most housewives in terms of cleaning. 

No need to waste more time; let’s jump right into what you should do to clean your toothbrush by using baking soda. 

The first step is to mix water with baking soda. The suggested ratio is 1 cup of water to 2 tablespoons of baking powder. Next, stir the mixture and dip the toothbrush into it for at least 30 seconds. 

Consequently, please take out the toothbrush and wash it under fresh water to ensure that none baking soda powder remains on it. The toothbrush is fully sterilized and ready to use now.


McKesson Antiseptic Hydrogen Peroxide <Via>

Baking soda aside, there is another chemical substance that you can use for brush sanitizing: Peroxide. Typically, you can find it in pharmacies with the name “3% Hydrogen Peroxide Solution”. 

However, you cannot sterilize your brush with the “raw” peroxide liquid, but have to mix it with water. To be specific, mix peroxide with water at the ratio of 1:1 and stir the combination. Then, the product gained is what you can use for sanitizing. 

Here is the full procedure of cleaning a toothbrush that falls on the floor using a hydrogen peroxide mixture. The first stage is to mix with the peroxide amount equal to the amount of water. Then, soak the brush’s head into that mixture and wait for a maximum of 5 minutes. Then, take the brush out and wash the brush carefully under hot water.

Unlike other chemicals on the list, peroxide is not safe if eating. It is not the toxic, poisonous type of chemicals, but it will cause side effects when going into your body, which is not good for your lung and respiratory system. As a result, please wash your toothbrush carefully with hot, fresh tap water so that you can ensure all peroxide was removed from the brush. 


If your toothbrush falls on an extremely-dirty floor, you have to apply the more intensive method to discharge the bacteria and germs, and “cooking” the brush in the dishwasher is a method we would like to suggest to you.

This method is quite simple to follow. Firstly, please turn on the dishwasher, wait for it to warm up, and then place the toothbrush on the silverware tray. Then, run the tray to the dishwasher and let it function as normal. The dishwasher will apply warm water to your brush, stir it, sweep it powerfully and soak it through the dryer just like washing dishes typically. 

That being said, through the cleaning process of the dishwasher, most bacteria will be eliminated, leaving your brush cleanest as ever.

However, there is one notice for you: Please don’t apply the soap or dishwashing liquid. Normally, the machine will alert you to add a dishwashing mixture to start the procedure, but please ignore it and immediately start the dishwasher. Otherwise, you can “eat” the soap without notice.

Rinsing in Warm Water

The traditional technique to sterilize any object is to rinse it in warm water. Frankly enough, many people thought that it isn’t effective, but in fact, it works. 

However, as mentioned above, the high heat can kill bacteria, so warm water, which provides lower temperatures, is less effective than the “boiling technique.” We recommend you use this method if you have already had warm water at your place, and the floor that your toothbrush fell on is clean. 

Let me introduce you to this method. First, you have to prepare a bowl of warm water or wash directly under warm tap water. Then, rinse your toothbrush in that water for about 20 seconds. You can rinse longer if desired. 

After rinsing, store the toothbrush upright in sunny and dried places so that there is no water remaining on the toothbrush because moisture and humidity are two factors for multiplying bacteria. Please avoid keeping your toothbrush in a cabinet or a drawer.


Vinegar is another toothbrush sanitizer on the list. It is one of the top effective ingredients used for cleaning in the household. 

Compared to other options on the list, vinegar is easy to make at home, cheap, and nontoxic. Its acidic feature works well on eliminating bacteria and germs but does not toxicate the body if accidentally exposed. Given that fact, we suggest using vinegar for sterilizing household objects. 

Here is what you should do to clear up your dirty toothbrush with vinegar. The first stage is to mix half a cup of water to 2 spoonfuls of vinegar and stir it. Consequently, place the brush’s head into that liquid for at least two hours to kill germs. 

Likewise, take out your brush and wash it under fresh water to eliminate the “special” smell of vinegar. It is harmless if the vinegar remains on your brush, but it can smell uncomfortably to somebody, though. 

Besides, we advise you to soak your toothbrush in vinegar once a week to maintain the brush’s hygiene. Just prepare a bowl of vinegar and dip it overnight, then tomorrow morning, you can quickly wash it and use it as normal. 


Colgate Total Alcohol Free Mouthwash <Via>

Last but not least, mouthwash is another ingredient that you can use for cleaning your toothbrush. Compared to other sanitizers, mouthwash may not be the top one, but suppose you have it at home and use it daily, it’s acceptable to apply mouthwash to clear up your toothbrush.

Mouthwash is produced to kill all bacteria and germs living inside your mouth. Hence, it is safe if the liquid accidentally interacts with your body, right? So, mouthwash is safe if it remains on the toothbrush after the cleaning process. 

In addition, mouthwash can sanitize all the bacteria, which means it can also eliminate all germs staying on your toothbrush, either because they are the same. 

So, what is the procedure of cleaning the toothbrush then? Firstly, pour a fair amount of mouthwash into a cup. Then, soak the head of the brush into that liquid for 15 minutes. Finally, please take out the brush and wash it under hot water and store it in dried places.

Wrapping It Up

Through this article, we have dived deep into some techniques on how to clean a toothbrush that fell on the floor. In short, there are many different methods to clean your toothbrush, and you can base on the cause of dirt and how long you didn’t sterilize it to determine which way is the most suitable. 

However, no matter which technique you select, please remember to clean your toothbrush periodically, at least once a month, to maintain hygiene.

Hope this post provides you with helpful insights regarding the toothbrush’s sterilization process. Thank you for reading!

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