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Purified Water vs. Distilled Water | Uses, Pro & Cons

First of all, purified water and distilled water are both the pure form of water. These waters still have some differences.

But the main difference between the waters is that purified water contains minerals that are important for the health of the person.

However, purified water does not contain any chemicals or contaminants.

If we talk about distilled water, it is also a pure form of water, but it does not contain important minerals essential for our body.

In the distillation process, there is boiling of water, and then condensation is carried on. So we get the pure water through condensation, but unfortunately, it is deprived of important minerals.

I will answer all your questions regarding purified water in this article and distilled water. We will discuss the pros and cons of both the purified water and distilled water and their uses.

Difference between distilled and pure water

What is Purified Water?

The purified water is drinking water intended for human consumption, subjected to treatments to improve its organoleptic properties (smell, color, taste).

These treatments are called “purification” and are processes that allow the elimination of chlorine.

Purified water is sold in bottles or is obtained from tap water suitably treated with specific devices called “reverse osmosis purifiers.”

Pros of Purified Water

Immediate results:

The first advantage of purified water is that you will get the purified water immediately and at less time. So, fortunately, it will take just seconds for the water to pass through the filtration stages.

Relatively low energy process:

Also, the purified water produced is a relatively low energy process. This is because it is a mechanical filtration process that requires very little energy.

Clean and good taste of water:

There are many filtration techniques, as well as reverse osmosis processes used in getting the purified water.

Through these filtration techniques, the taste of the water is maintained, which is safer for people’s health.

Also, it contains essential minerals as well as being deprived of all the harmful chemicals, pathogens, and environmental pollutants.

Remineralization option:

However, if there is less mineral content in the purified water, you can go for a remineralization option so that the people would enjoy the taste of the mineral water.

Moreover, the Remineralization option is a good and safer method to get pure water through water filtration.

Cons of purified water

There are many disadvantages of purified water, but still, it is better than distilled water, especially for drinking purposes.

Requires more Complex installation:

The water filters used in the house to get the purified water are more complex, as well as requiring the complex installation.

This is because they come in partially assembled form, so you have to connect the unit up to the cold water line.

Removal of healthy minerals:

Along with the removal of impurities, the water we get through this process will also remove the good impurities. However, the water filtration process removes 99.9% of all TDS from water.

Requires high water pressure:

The proper functioning of the filtration process in your home requires high water pressure.

This is because if your home pipeline has low water pressure, then the water filtration process will not work efficiently.

Especially if you are looking for the reverse osmosis solution, keep this thing in mind that the Reverse Osmosis process requires a high water pressure to force the water through the RO membrane quickly enough to minimize the waste.

Costly process:

If you are thinking of getting the purified water for your home, then keep this thing in mind that it is a costly process.

The systems which give you purified water are very costly, especially the reverse osmosis process.

If you can afford it, you must go for this process as reverse osmosis will give you pure water.

Reduce water waste:

Unfortunately, the main drawback of the reverse osmosis process is that it is the only method that produces water waste.

On the other hand, many systems use a booster pump to send water through the RO membrane at a faster rate. This will reduce how much water goes down the drain with the contaminants and impurities.

Uses of purified water

There are many uses of purified water, which will make you an easy decision about what to choose.

Fresh, healthy water:

Fresh, healthy water is necessary for you to improve your and your family’s health.

Food preparation:

The food preparation by using purified water is necessary because it does not contain chlorine or other chemicals that should not be absorbed into your food.

Increases the effectiveness of pharmaceuticals:

The effectiveness of pharmaceuticals will be increased by using the purified water in their manufacturing.

Improve the quality for use in infant formula:

As in tap water, many chemicals and contaminants are present, which is lethal for your small baby. So using purified water will improve the quality of infant formula.

Healthy for your pets:

Just like humans, pets also have all the senses, including taste and smell. So giving them purified water will have a good impact on the overall health of the pets.

What is distilled water?

Distilled water is obtained by distillation ( evaporation and subsequent condensation ) from normal tap water or from pre-purified water.

It largely does not contain salts, organic substances, and microorganisms. However, it can also contain small amounts of volatile compounds.

Distillation by conventional methods is a very expensive process because of the high energy consumption.

Water with a low salt content is obtained from the condensate collection. By discarding the initial fraction of evaporated water, water with a low content of volatile gases is also obtained.

Distilled water has a lower electrical conductivity than the starting water due to a lower concentration of ions inside it.

It also has “less taste” than drinking water and can be defined as insipid, with an indefinite, metallic taste or bitter.

Pros of Distilled Water


There are many distillers available in the market that come with a built-in remineralization filter.

Most amazingly, the main function of remineralization filters is to add the calcium and magnesium back into the water.

This thing is very important if you are much more conscious about the mineral water’s taste, or you still want the health benefits of drinking water with the added minerals.

Contaminant free water:

Through the process of water distillation, you can purify your water more effectively. So you will get the contaminant-free water when you have distilled water.

Moreover, the contaminants are effectively removed with the help of a carbon filter. So all the contaminants are filtered through this filter, making it a highly efficient removal of contaminants.

Lower cost filtration option:

Surprisingly, you can get the home water distillers at less price where you can do the distillation of your water.

Most amazingly, it is the best method as compared to reverse osmosis units. This is because reverse osmosis is a costly process; however, they do the same job of removing the contaminants.

Simple installation:

The good thing about the distillation process is that it requires only simple installation. Now, you do not have to spend a lot of time assembling the machines.

Usually, many distillers come in a fully assembled form. You just have to complete the basic installation tasks, such as adding the handle to your storage tank.

Cons of distilled water

Removes healthy minerals from water:

The main point about distilled water is that it is deprived of important minerals, especially calcium and magnesium.

Unfortunately, the distillation process removes all the healthy minerals, including calcium, potassium, and magnesium.

So as I discussed earlier, if you want to add the minerals again into your distilled water, you must purchase a remineralization filter.

Requires regular upkeep:

Usually, the water distiller will not work efficiently without regular upkeep. Many contaminants are left behind in the boiling chamber after every batch of distilled water is produced.

Consequently, it will cause the building up of harmful microorganisms as well as bacteria.

With calcium and magnesium’s deposition, there are also limescale deposits on the inside of the boiling chamber. So you have to clean the chamber regularly to keep it clean.

A lengthy process:

The main disadvantage of the distillation process is that it is a lengthy process. First of all, when the water is boiled and condensed from the steam, it will collect droplet by droplet.

So you have to wait a longer period to get the distilled water.

Unfortunately, it will take several hours to collect this water because of water drips. However, on the other hand, water purification through reverse osmosis will take some seconds to pure.

A high amount of energy:

For the distillation process, there is high consumption of energy.

First of all, when you have to boil water, a lot of energy is used because you have to wait for all the water to be boiled.

On the other hand, reverse osmosis also gives the user’s a particular amount of energy but is more efficient and less time-consuming.

Uses of Distilled Water

There are many uses of distilled water, so take a look at different ways with the help of which you can use distilled water in your everyday life.

Best For drinking:

You can use distilled water for drinking because, in tap water, there are hundreds of these contaminants as well as bacteria present.

So distilled water is a pure form that is safe to drink. However, on the other hand, some people do not like the flat taste of distilled water. But still, it is good for drinking.

Vehicle maintenance:

Vehicle maintenance can be better done with the help of distilled water. So whenever you are thinking of using the water for the car’s cooling system, then you must go for the distilled water.

The reason is that distilled water does not cause corrosion or any type of lime scaling into your vehicle system.

Adding to a humidifier:

When you add the distilled water into your humidifier, then it totally affects the quality of the air you breathe in.


Ironing your clothes with distilled water is a good option because it will not cause any kind of lime scaling in the irons. So when there is no line scaling, the efficiency and lifespan of the iron are greater.

Watering plants:

When you water the plants with tap water, it contains certain chemicals and contaminants which are harmful.

So you must water your plants with distilled water to keep them safe as well as less accumulation of contaminants in the soil.

Home aquarium:

As we all know that fish always live in water, so high-quality water is necessary for them. So when you take your fish in the aquarium with water, it will have many healthy effects on the fish.

The chlorine present in tap water is harmful to the fish, so you must go for the distilled water as it is one of the best options for the healthy home aquarium.

Washing your face:

Washing your face with distilled water is the best option when you are more concerned about your skincare.

Keep this thing in mind that distilled water is a better rinsing agent than normal tap water, and it will not clog your pores, which is responsible for different skin problems, especially acne and eczema.

Mixing with baby formula:

Many doctors and nutritionists recommend using distilled water for infant formula. This is because it is safer to use as well as keep your baby away from many harmful chemicals and contaminants.

Distilled water vs. purified water compared – which one is better?

From my point of view, purified water is better than distilled water. I’m not saying that distilled water is not good.

It is good for different purposes, but if you are thinking of using the water for drinking purposes, then purified water is the best option.

This is because it contains many important minerals, especially calcium and magnesium, which is necessary for the proper functioning of the body.

How can you obtain purified water?

You can make your water purifier, which is good for drinking. So the water can be purified with different techniques and tips.


Boiling is the first approach towards the purification of water. So many people go for boiling of the water, but unfortunately, in summer, people do not like to drink the boiled water because its taste is changed.

Using iodine solution, tablets, or crystals:

Using these things to purify the water is also good, but unfortunately, you will not like the water aftertaste because of the chemicals such as iodine solution. However, it is also not suitable for pregnant women.

Using chlorine drops:

Chlorine drops to purify the water are also the best thing, but people still do not like its smell and taste.

However, you can use all these approaches if you do not think of drinking the water and using it for cleaning purposes.

Using ultraviolet light: 

This is the best approach to purifying the water. All you have to do is to just swish the UV light around the water for a few minutes. After that, all of your water becomes purified. Consequently, you need batteries for this process.

FAQs for Purified Water vs. Distilled Water

Q 1: Which is better distilled or purified water?

Ans: Usually, purified water is better than the distilled water and is a good option. This is because it removes chemicals and impurities from the water.

Consequently, you must be aware that in distilled water, there are no naturally occurring minerals present. These minerals are magnesium and calcium, which are necessary as well as beneficial for your health.

Q 2: Can you drink distilled water?

Ans: Yes, you can easily drink distilled water, and it is also safe to drink. But unfortunately, you will not like its taste.

This is because there might be a lack of important minerals such as sodium, magnesium, or calcium in the distilled water.

So you will not get the familiar flavor of tap water and might not want to drink it again.

Q 3: Is it okay to use purified water in a CPAP machine?

Ans: From my point of view, purified water is not a good choice to use in a CPAP machine.

The reason is that if you use purified water in that machine, then it will leave the deposits as it evaporates.

So I recommend using distilled water in a CPAP machine because it will not deposit any minerals in the machine.

Q 4: Does purified water have minerals?

Ans: However, many chemicals and contaminants are removed from the purified water, but still, it contains minerals.

Keep this thing in mind that purified water goes through the process of filtration as well as reverse osmosis filters the water through the membrane, usually called the semi-permeable membrane.

So purified water contains important minerals such as potassium chloride, magnesium sulfate, calcium chloride, magnesium chloride, as well as potassium bicarbonate.

Q 5: Are there any side effects of Distilled Water?

Ans: Distilled water does not contain important minerals, especially calcium and magnesium, but along with these things, the main negative effect of using distilled water is that it has a flat taste.

Many people do not like the flat taste of distilled water. The other side effect of distilled water is reduced mineral content. It will disturb the metabolic rate of the body in the long run as well as more urine output, which results in electrolyte imbalance.

Final Verdict

Both the purified water and distilled water go through the process of purification and filtration. So through these processes, tap water becomes pure.

But still, there is a large difference between purified water and distilled water. It is very important to understand the basic difference between both types of water. But in an easy way,  they differ from each other in many aspects.

There are important minerals present in purified water, but distilled water does not contain essential minerals.

We will definitely go for purified water not because it has important minerals such as calcium and magnesium present in it, but it also has a good taste, which must be the first priority of selecting the water for drinking.

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