What’s the Difference Between Distilled and Purified Water?

The most interesting part of the battle between distilled vs. purified water is the fact that distilled water is purified water.

We will be explaining the manufacturing process, uses, health benefits and more of the aforementioned in this article.

But before we get there, let’s check out the types of water and what makes them different from each other.

Mineral Water

Naturally, mineral water contains many dissolved minerals. The threshold for water to be mineral water is it should contain at least 250 PPM (Parts Per Million) of total dissolved solids (TDS). 

Tap water rates at 300-400 PPM, meaning drinking tap water add necessary minerals to your body that enhances your health. 

Spring Water

Springwater is the water deposited deep underground. The source of underground water is rain, roots and the natural ability of soil to hold water. Springwater is rich in minerals and some nutrients.  

This water is collected with a borehole, and filtered before being supplied to you. With no contaminations or additives, this water satisfies your palate the best and quenches your thirst.

Purified water

Interestingly, the purest form of water is a myth. Here’s why.

The purified water is defined by the absence of impurities found in the water. Generally, in order to be classified as purified water, the impurity load shouldn’t exceed 10 PPM. 

Purified water is usually produced by the purification of drinking water or groundwater by processes including capacitive deionization, reverse osmosis, carbon filtering, microfiltration, ultrafiltration, ultraviolet oxidation, or electrodeionization.

Distilled Water

We already mentioned that distilled water is purified water. 

So how is distilled water different from purified water?

Well, this water goes through a process called distillation that removes all contaminations from water, and the membrane methods of reverse osmosis and nanofiltration remove most, or virtually all, minerals. There are various water distillers in the market which perform this process. Find the list of some finest water distillers here.

Distilled water, like all purified water, must be stored in a sterilized container to guarantee the absence of bacteria and the continuity of it. With a PPM of about one, it can be classified as purest out of purified waters!

Distilled vs. Purified Water

Both distilled water and purified water are the purest forms of water you can find.

In fact, the distilled water takes the cake as a purer one and has been used in medical facilities and laboratories. 

Since they both are used for drinking purposes, many people are confused over the best type of water to drink. We’re here to help!

Health Benefits of Distilled Water

  • Distilled water is essentially free from any contaminants.
  • It is the purest form of water you can find.
  • Distilled water is free of pesticides and bacteria, which could be beneficial to those with weakened immune systems like HIV/AIDS or cancer patients.
  • Distilled water effectively removes chlorine from drinking water, decreasing your exposure to chlorine.
  • The absence of impurities can improve the taste of water.

However, distilled water is purest with less to no dissolved minerals, but it is not necessarily the healthiest. 

Technically, distillation removes around 99% of all the minerals found in tap water. Removing the impurities and electrolytes from water also removes beneficial minerals like calcium and magnesium. 

Drinking distilled water exposes you to the risk of mineral deficiency that has severe consequences like fractures, preterm birth, heart diseases, and cavities. 

Health Benefits of Purified Water

  • Depending on the type of purification system used, purified water is free of heavy metals, chemicals, and other contaminants.
  • Charcoal filters remove chlorine, the addictive chemical, used by the water supply agency as a disinfectant.
  • Purified water contains beneficial minerals to some extent based on the level of purification which is good for health.
  • The removal of chemicals and organic wastes in water improves the overall quality and taste of water.

Does that mean purified water is the best water to drink with no downfalls?

No. It also has some potential drawbacks.

Purified water may not be free of all the contaminations. Also, the installation and maintenance cost of water purifiers will set you back hundreds of dollars.

The addition of chemicals like fluoride in purified water is practiced in some countries. Although this contributes to improved dental health, excessive fluoride level is toxic to brain and nerve cells. This has been associated with learning, memory and cognitive deficiencies.

Purified water is often packed in plastic bottles and widely sold all around the world which contributes to plastic waste. These non-biodegradable wastes are expensive to recycle and to dispose of.

Here’s a quick recap of how distilled water differs from purified water.

Uses of Distilled Water vs Purified Water

Now that we know the major differences between the distilled and pure water, let’s go through some of their major applications.

Distilled Water Purified Water
  • Canning fruits and vegetables
  • Use in cosmetic industries
  • For developing photo film
  • For filling wet batteries
  • Pharmaceutical Industry
  • Commercial Beverage Industry
  • Laboratory Testing
  • Laser Cutting
  • Automotive Use
  • Fish Tanks
  • Baby Formula


So we have come to the conclusion that distilled water is purified water that uses the distillation method out of many others. Also, distilled water is the closest thing you can get to the purest water with less than 0.5% impurities. 

Distilled water is free of all impurities which makes the mineral content zero. This makes the distilled water more suitable for medical facilities than ingestion.

On the flip side, purified water makes a straightforward solution to drinking water provided that you take into consideration of nature and not buy plastic bottles. If there is no water filter available at your home, you can simply DIY your water filtration system with these easy steps.