How To Remove Fluoride From Tap Water (Cheaply)

The process of water fluoridation in water plants started to be widely used in the last century. However, after a detailed study of the effect of this element on the human body, it was concluded that it has a negative impact. Many countries nowadays are promoting a need to remove fluoride from the water supply. So how to remove fluoride from water cheaply afterall? Here is a short summary:

The cheapest way to remove  fluoride from water is sedimentation. As many other impurities, fluoride settles on the bottom of the container with water, so the top layer is relatively safe to use. Although, this is the easiest you can do, investing into water filter will provide much more reliable and long term solution. Note that boiling will not remove fluoride from water.

I don’t want you to wait until your local authority takes care of this. I want you to take responsibility for your health in your own hands. For this reason, in this article, I will explain why it might be dangerous and how to remove fluoride from tap water cheaply and in-home conditions.

What Is Fluoride?


The scientists’ interest in fluoride reached its peak in the 1930s. This micro-element is biologically active when it interacts in the human and animal body. It is a known fact that fluoride has a positive effect on teeth and bones skeleton. For its qualities, fluoride is also an added element in toothpaste to strengthen teeth.

The small amount of fluoride has a positive effect on the health of the teeth. Low doses of fluoride help to reduce the development of caries in the deciduous and permanent teeth. For this reason, it was decided to add fluoride to water at the local treatment plan. However, why it went wrong?

In the USA, the fluoridation of water began in 1945 at the local plant in Michigan. This was justified by the fight again teeth decay and caries. However, an excessive amount of fluoride in the water supply led to the fact that people started to have health problems. This was because an excessive amount of fluoride in the body leads to skeletal fluorosis, which is essentially damage to the bone structure.

While the global prevalence of dental and skeletal fluorosis is not entirely clear, it is estimated that excessive fluoride concentrations in drinking water have caused tens of millions of dental and skeletal fluorosis cases worldwide over a range of yearsWHO

Health Impact Of Fluoride

The increase of fluoride to 3 mg/l, increases the risk of dental fluorosis, and its concentration to 6 mg/l leads to irritation of bone marrow and dysfunction of a central nervous system. The white spots on teeth characterize fluorosis, and severe fluorosis can lead to brown or even black spots. Fluorosis affects people who live in places with a high concentration of fluoride in their water.

Nowadays, city water supply is strictly monitored on the concentration of fluoride. The high amount can usually be found in wells and natural water sources.

Ways to Remove Fluoride From Water

WHO recommends that the concentration of fluoride in the water shouldn’t exceed 1 mg/l. However, the organization also claims that 2% of Americans are exposed to a level higher than 2 mg/l.

You might argue that 2% is nothing but considering the US population that was 325 million in 2017, 2% means that 6.5 million are exposed to a higher dose of fluoride.

The fluoride in water has a characteristic chemical smell. Usually, the element gets into the water when insufficient purification or it is present in natural water wells.

Now, let’s have a look on tips on how you can remove fluoride from your water supply. I have mentioned some of these methods in the previous article on how to remove iron from water.

Ion Exchange Method

This method is applicable when it comes to removing the fluoride as well as iron. The way it works is that the fluoride ions are exchanged and replaced by hydrogen or sodium irons. This is done in the environment that contains these elements: aluminum oxide, activated carbon, and ion exchange resin.

Absorption Method

The principle is straightforward; you just let the water run through a mixture of powdery materials. The mixture of substances reacts to fluoride ions. These are the following: aluminum and magnesium hydroxides, and tricalcium phosphate.

Reverse Osmosis

I think there is no need to deeply explain this method, because if you are a regular reader of this website you have probably read about reverse osmosis so many times. There is a membrane with such small pores that only water molecules can pass through. This membrane filters out everything apart from water, even healthy minerals.

How To Remove Fluoride Cheaply At Home


This is surely an excellent method to remove contaminants from water in general, and this is not relevant only for fluoride. Fill the non-metallic container with water you would like to purify. Make sure to leave the lid open – this is necessary for chlorine to evaporate.

Close the lid and leave water for around 8 hours to settle. Now, your water is ready and all impurities settled on the bottom. You shouldn’t use all of the water as all the settled impurities would dissolve in the water again.

Boiling Doesn’t Remove Fluoride

boiling water

This method is also excellent for purification. However, boiling doesn’t remove fluoride. Although, it is a good way to kill germs in water.

Let the water boil for at least 15 minutes. Salts and chemicals compounds settle, and bacteria die in boiling water.

How To Remove Fluoride With Filter

Probably the most efficient way on how to remove fluoride from water is the purification system. There are many various types of a filter, but since we are looking for the cheap ways to treat your water from fluoride, I will have a look on two kinds of filters, pitchers, and faucet mount. I have written an article specifically about this topic where I have various picks so, make sure to check it out.

Pitcher Filters

The obvious, most common and inexpensive way to remove fluoride and other contaminants are pitcher filters.

The jug is divided into two halves with the filter cartridge in the middle. You pour the water in the upper half and let it through the filter to the bottom section. The disadvantage of this type of filtration is the slow water treatment rate and the capacity of filtered water which is between 1-3 liters. I have written the article where I have selected best budget pitcher filters.

Faucet Mount Filters

The faucet filters are slightly more expensive than pitcher filters, but they are solving the problem with the water flow and filter lifetime. The installation is easy and tool-free. These filters fit on most of the standard faucets and have a valve to swap between filtered and unfiltered water. You can have a look on my best picks in this article.

Final Advice

In most cases, fluoride won’t cause any damage if its amount is not more than 1.5 mg/l. Usually, the excessive amount of fluoride can be found in water that is supplied by a well and natural sources as this element is naturally present in the ground.

The higher amount of this microelement in a body can cause fluorosis of bones and teeth. White spots on teeth can identify this disease. However, please note that white spots on teeth might not necessarily mean that you have fluorosis, and you should always see a doctor that will help you to identify the cause.

There are several ways on how to remove fluoride from water such as sedimentation and boiling. However, there are better alternatives that are not expensive as well such as pitcher and faucet mount filters.

If you found this article helpful don’t forget to share it with your friends and family on social media. Share your experience with the fluoride in a comment section below.

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28 thoughts on “How To Remove Fluoride From Tap Water (Cheaply)”

  1. Fascinating – I knew about the fluoride in the water system to fight tooth decay, however I had no idea that higher amounts can cause issues. I also didn’t know that well water could contain higher concentrations of it. I wonder if they actually test for this when they drill a well ?

    1. Hi Dave,

      The fluoride that is organically contained in a water is not usually in excess. However, I believe that you can test your source of water and I actually recommend you to do so.


    2. Yes, it does, I also didn’t have this information. So my daughter developed fluorosis (whitening of her teeth) which makes it susceptible to tooth decay and have to make frequent trips to the dentist. But i wish i had this information earlier

      1. Sorry to hear that Sarah.

        I believe that the amount of fluoride we receive every day from food and toothpaste is more than enough to cover our daily need, so I agree that adding this to our water is just unnecessary and what is more important irresponsible.

        Hope your daughter is better now.

        Thanks for stopping by,

        1. The real purpose of fluoridation, currently “on trial”, is to eliminate an immense toxic waste disposal issue for the aluminum & fertilizer industries.
          If tooth decay in a small segment of the population was the concern, and the crap actually works, why didn’t they just make it an option in the school milk program? Most of it is wasted, and slowly accumulating in our bodies, regardless of the level one ingests. The rapid sedimentation means it must generally concentrate in the municipal plumbing overnight. God knows what the ACTUAL levels are at the points of use. How bout the water heater tank? It has to be concentrating there also. Then we pound it into our open pores with every hot shower. It is absolutely insane.
          It is not about cavities, but dumbing down the population. Studies show both fluoride and wireless radiation are neurotoxins that cause brain damage, and loss of cognitive ability. Seems pretty obvious it’s working. Falling for this “deadly virus” hoax seems even more insane than the fluoride hoax.
          Poor nutrition causes caries, not lack of fluoride. So why don’t we spend the same amount educating parents about proper nutrition, as we do on applying a known neurotoxin to our lawns, gardens, vehicles, down our drains…and down our childrens throats??!!
          Welcome to corporate America…and global medical martial law.

  2. Hi Eugen,

    Lately, what I realized is that we shouldn’t trust the government and/or the big organizations that claim they care about public’s health. Just watch some Netflix documentary movies…

    So, I decided to take matters into my own hands.

    Now, when it comes to eating habits, making changes was easier. More fresh fruits and vegetables, no dairy products, less meat. But I kept wondering about water being clean and what to do about it.

    I mean even though I live in Canada where even tap water is supposed to be clean enough compared to other countries, I still think there’s a way to drink more pure H2O.

    I’m doubting between pitchers and faucet mount filters. Because filters would be great when I travel, but faucets great for home. Out of curiosity, are faucet mount filters easy to install?

    Appreciate you sharing your knowledge.

    1. Hi Zarina,

      Yes most of the faucet filters are super easy to mount. They will fit most of standard faucets so, just check your faucet if it doesn’t have any unusual shape.

      I agree with you that most of the people don’t realize that they are made of water, therefore it plays a massive role in ones health. So, I would encourage anyone to take care of it.

  3. Jessica Lauren Vine

    Do you think that you should invest in expensive water filters? I find the things that you spoke about to remove fluoride will be helpful, but what about all of the other stuff in our water? Maybe I am just being paranoid… lol I am just not sure hooooow much money I am willing to spend on a water filter! :-O

    1. I honestly believe that initial investment in the right water filter can save you much in the long term. It is not just about fluoride. Check out my other articles on the website, I believe I have enough information so you can make an informed decision.


  4. I’m so confused about if fluoride is or is not good for us. My daughter’s dentist insists that I should let her drink water with fluoride in it because it will help her teeth while others, including your report, say that it isn’t good for us. For now, I’m sticking to fluoride-free products which seem to be working fine. Now I’m glad to know how to remove it from our water.



    1. In short, fluoride is good for us but in a certain amount. When you exceed this amount it becomes dangerous as per the article. I am not going to argue with your dentist as I am not a doctor, but personally, I would just buy a fluoride toothpaste if more of it is needed.


  5. It is a concern for peoples health where the fluoride level is over 1.5mg. At home we use a Brita pitcher filter and its main purpose is to remove the hardness from the water, as we live in an area of the UK with harder water. I have drank the filtered water from it before, but found it quite a bit tangy. Its good that there are a few cheap ways in removing the fluoride from the water. It was interesting to read some of the history of fluoride. 

  6. I live in the country and on a farm. All of our water comes from the heavens and it is beautiful to drink. We have never had fluoride in our water and at 71 years with all my teeth still in good shape I would ask whether it really is necessary to put it in in the first place.  

    For people living in cities this article would be significant especially if they suspect their water supply has higher ratios of fluoride.

    You have listed several ways to reduce the amount of fluoride. A simpler way would be to collect your own fresh water with a tank or move to the countryside. 

    My other concern would be if authorities can force you to have fluoride in your water what else might they put in there?

    Thank you for a very thought provoking article. 

    1. Hi there,

      Well, the story with fluoride is that you have enough of it from food. Also, if you use a fluoride tooth paste you cover the amount you need.

      So, for this reason I don’t understand the point of adding it there.


  7. Well, Eugen, this has certainly been an eye opener.

    I have been drinking water directly from the tap all my life.  And, now, I find out that the fluoride in my drinking water can have a traumatic health impact on my body!

    I like the Brita pitcher filters much more than the faucet mounted ones so, I think I will give them a try.  The problem is, that they don’t filter as much water – but, I can get used to it.

    Are you planning to review any gravity fed water purification systems?  I would be interested in your assessment of them as compared to the pitcher and faucet filters.


    1. Hey Jim,

      Thanks for stopping by. Yes I am planning to make an article about gravity fed systems soon.


  8. I actually just recently discovered that the fluoride in my water is causing a ton of my houseplants to basically turn yellow and brown at the end of their leaves! I had no idea this was the cause until someone randomly pointed it out. Because of this I’m now using a countertop filter just like you mention below.

    Is there any easy way to tell how much Fluoride my water has? A simple test or something I can do?

    1. Actually there are tests to detect Fluoride in water. However, these will tell you whether it is in water or not, but not the amount. There are more advanced testers available but we are talking hundreds here, so the question is… Is it worth the price?


  9. Hi Eugen,

    Excellent article, I enjoyed very much the reading!

    I have heard somewhere that fluoride is really bad for the health and here again I read it. Very informative, thank you!

    I never drink tap water. In fact, I use tap water only for my coffee. I do have a question though. Do the tap water still contain fluoride after boiling it? 

    Thank you very much!

    1. Hi Daniella,

      Yes as mentioned in the article unfortunately, boiling does not remove fluoride out of water. It is not that it’s explicitly bad, but It is not something you need to have in water as I believe with balanced diet we have enough of it from elsewhere.

      Thanks for the compliment 🙂


  10. Eugen,

    Interesting I always thought the fluoride in water was good for us, thanks to reading your article I have now found out that this is not exactly the case. I love spring water and use it regularly and now am wondering if this source that I collect it from has higher levels of fluoride than recommended.  I do feel it would be best to have this water tested now that I am aware of this fact and will cease drinking until I have the information. 

    Thank you,


    1. Hi Susan,

      I am glad that my article has helped you and educated you about the issue. I would definitely suggest to test water to anyone.


  11. Hi Eugen,

    Great article about fluoride removal from water. I have seen numerous people suffering excessive fluoride ion from impure water and skeletal fluorosis in small kids and huge amount of people are impacted by having brittle teeth. It is rampant in the developing countries. Good news is people are slowly getting aware of these kinds of situation.

    Lot of people really don’t understand English, these ones are suffering more as I have felt. 

    I was removing ionic fluoride from a pharmaceutical intermediate as a part of assignment. It was not easy to meet the tight specification at ppm level.

    I wish a lot of exposure for this article. Thank you for sharing.

    1. Hi Anusuya,

      Thanks for all your support. I think that it is pointless adding fluoride into water, I mean we should have a choice whether we consume it or not. If there is a need to get more fluoride you can get a toothpaste with higher amount of it.

      Thanks for stopping by,


  12. I am happy to see more people wanting to decalcify their bodies and live healthier lifestyles. Which water pitchers and sink attachments remove fluoride? I have read that carbon filters, like Brita and Pur don’t. Also, have you tried Tulsi, also known as Holy Basil, it was found to reduced fluoride found in the water by up to 1.1ppm (parts per million). If you have I was wondering if it affected the taste. Thank you for the information.

    1. Hello Rey,

      Thank you so much for stopping by and leaving a comment. I have received a feedback from lots of people asking to help them to select a filter that removes fluoride so I have written a separate article about this topic – click here to read. It cover a variety of filters, so have a look.

      Yes, are right about Brita and PUR I am not a big fan of these filters as I believe that there is a better alternative to them. I have also written a separate article about Brita so have a read.

      I am not aware about Tulsi, but will definitely do my research on this and potentially write an article about it.

      Thanks again for stopping by.


  13. Thanks for article, its simple and easy to understand, My family have not used fluoridated toothpaste in 25 years, we have used reverse osmosis with a remineralised cartridge. Our teeth are good to go. Recently my daughter has installed a Kangen machine in her kitchen what are your views?

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