Chlorine is commonly found in city water, and its presence can be detected by its taste. Most city treatment facilities use chlorine as a volatile gas to kill bacteria in raw freshwater. Boiling chlorinated water for a certain amount of time is an effective way to remove chlorine from your tap water. However, there are alternative ways, such as water filtration, that you can utilize as well.

boiling water in kettle to remove chlorine

Boiling is arguably the easiest method of dechlorinating your water. It’s also effective for removing other contaminants.

To remove chlorine from your drinking water, you must boil it for at least 15 minutes. It will take about 4 minutes to eliminate 1 milligram of chlorine in 10 gallons of water.

This method of chlorine removal will remove a significant amount of chlorine, leaving just trace quantities in your drinking water. However, boiling water is not effective in removing chloramine (a more concentrated sanitizer). This is because it can take this method roughly 1 hour to eliminate 1 milligram of chloramine in 10 gallons of chloramine-treated water.

In summary, boiling is an easy method, but it has certain disadvantages. Firstly, it consumes energy since it requires heating your water. It’s also not the most effective way of removing chlorine. With that said, there are more effective ways to remove chlorine from water.

Other Methods to Remove Chlorine

Water filters are another method you can use to dechlorinate your drinking water. You can connect under sink water filters to your taps, laundry equipment, dishwasher, and showerheads. In addition, certain filters such as carbon filters or reverse osmosis filters are recommended to remove chlorine.

Reverse Osmosis Filter

The reverse osmosis system utilizes a semi-permeable membrane. Your water must flow through it before reaching your pipes. It has residential and industrial applications. The pores of this membrane will trap chlorine and prevent it from flowing along with the water. This will free chlorine and nearly all impurities from your water supply.

This water filter can also be integrated with carbon block filters to purify water and chloramine filtration.

Carbon Filters

Carbon filters are highly effective in removing chlorine. They also give your water a better taste. There are various types of carbon filters, such as the activated carbon filter, standard carbon filter, an activated charcoal filter. The most popular carbon filter used for dechlorination is the activated carbon filter because it’s more effective than other types.

It can remove up to 99.9% of chlorine. Its carbon media uses a process called adsorption to eliminate chlorine and other unwanted elements in your water. Activated charcoal filtration also improves the taste of your water, but it’s less effective in removing chlorine.

Leave the Water Exposed for Some Time

Unlike a water filter, this is a cost-free method of removing most of the chlorine in your tap water. Simply leave the water to sit overnight or for a similar period. This will trigger off-gassing and work similarly to exposing your water to high heat.


Distillation is an affordable and effective way to remove chlorine and chloramine from your water for drinking purposes. You just need a distiller and a refrigerator to chill it before use. However, producing distilled water is slow to an extent.

Ultraviolet Light

UV purifiers are mostly used by breweries, pharmaceuticals, and food and beverage manufacturing. UV light ranging between 180-400 nanometers in wavelengths can remove chlorine from water. It’s a more efficient and quicker way to remove chloramine than other filtration methods.

Haloacetic Acids

You can use certain chemicals such as sodium hydroxymethanesulfonate, sodium hydroxymethane sulfinic acid, or sodium thiosulfate to dechlorinate water and remove other contaminants such as ammonia. Although this is an effective method, it’s not recommended because it reduces oxygen levels in water and can damage organic filters.

Why Should You Remove Chlorine or Chloramine From Water?

Chlorine is useful in not only killing bacteria and generally disinfecting water it also sanitizes water lines. However, chlorine poses certain health risks, making its presence unwanted in your tap water.

It Messes With Your Gut

Since chlorine is very effective in eliminating bacteria, it can also eliminate the useful bacteria in your gut. As a result, it can trigger several complications such as autoimmune ailments, obesity, and irritable bowel syndrome. Gut bacteria regulate several things in our body, so removing chlorine will ensure that continues.

Gives Water a Foul Taste and Smell

This is the most obvious sign that there’s chlorine in your water. The smell is not just unpleasant, it’s also pungent, and it’s very unlikely that something that strong-smelling will taste good as well. So, unless you like how chlorine tastes in your drinking water, you should get rid of it.

Can Trigger Respiratory Complications

Individuals suffering from respiratory ailments such as asthma can be severely affected by drinking water with a high quantity of chlorine. Chlorine in pools can negatively affect the respiratory tract and cause breathing difficulty and comfortlessness.

It Can Cause Cellular Damage

Chlorine is so strong as a disinfectant that it can damage our cells when it’s absorbed or ingested into our bodies. When we drink chlorinated water, the resultant cellular damage can lead to several complications, some of which can be life-threatening. In addition, its ability to destroy cells makes it widely regarded as being similar to a carcinogen.


Boiling water can remove chlorine from water, but it’s almost helpless in chloramine removal. If you want to adopt a better method, you can pick one from the options mentioned above.

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