When searching for pure water at home, you’ll likely have come across water distillers and reverse osmosis. While both systems can provide safe water, they use totally different methods. Both water purifiers can be considered purified water. Which one is the best? Is the cost worth it? This article will explain the differences between reverse osmosis and water distillation. This article will help determine which option is right for you so that you can start drinking water that is more healthy.

What Is Purified Water?

Purified water is water that has been purified by either reverse osmosis or distillation. What exactly is purified water? Purified water must have less than 10 parts per million (PPM) total dissolved solids. This means water is 99 percent free from any substances, even minerals that could be beneficial for your health. This means that there are no contaminants. Purification removes all bacteria, protozoa, and chemicals from the water.

Reverse Osmosis

This method of purifying water uses high pressure to force the water through a special membrane called reverse osmosis. All impurities will be eliminated down to the very smallest level by the membrane. This is only the beginning of the process. Reverse osmosis systems can have several stages of water filtration that each remove different substances. To bring back essential minerals, a mineral filter is added at the end. Reverse osmosis is safe to drink. These minerals are important for the flavor of your water. Reverse osmosis water tastes fresh and clean.

Reverse osmosis systems are usually located under your sink, and connected to the main water line. You will be able to tap purified water from them through a separate faucet. The filters will need to be replaced approximately twice a year. Some systems may require more frequent replacements. They can be customized to offer as much or as little filtration as you want. RO systems are an excellent investment due to their versatility.


Distillation is a method that purifies water. This involves boiling water to create steam. Once the water boils, any contaminants or impurities are removed. The steam is then collected in a condenser, and then it is cooled down. As the temperature drops, steam will return to liquid. The water drops are then passed through a final carbon-post filter. This is the last stage of filtration and removes any chemicals which may have been boiled with it. Pure water is now only 1 part per Million of dissolved substances. This means that the water does not contain any minerals to enhance your health or flavor it.

A countertop distiller is the best choice for distilling water at home. This device can filter and distill water. It takes about 4-6 hours to make a gallon of water. You will also need a lot of electricity. Water distillers work in the same way as to reverse osmosis systems. These systems can be expensive and will require regular carbon post-filter replacement.


  • Purified water
  • Only 1-ppm is the limit for dissolved solids


  • Removes essential minerals
  • Flavors without minerals
  • It is a time-consuming process

Which Is Better For You?

Better water sources are important for people’s health. It is sensible to determine which type of purified water is the best. While both methods eliminate all water from the system, reverse osmosis systems add the essential minerals to the water. Water doesn’t need to be devoid of minerals. It is best to keep healthy minerals in your diet. Distilled water is an option but it is best to consume plenty of mineral-rich foods in order to avoid deficiency. Reverse osmosis is better for drinking water as it not only has the same benefits as purified water but also contains good amounts of minerals.


Reverse osmosis water purifies water. Distilled water is considered purified. Reverse osmosis water purifies the water by passing it through several stages of filters and RO membranes. This eliminates all impurities. This is often followed by a mineral filter that will replace any minerals removed during purification. The result is pure, tasty, and healthy water, which is great to drink.

Distilled water can be reduced down to 1 part per million. Boiling water removes contaminants. Once the steam is collected, it’s cooled and then filtered again. After the steam has been collected, it is cooled and then filtered once more. Each system has its own advantages and disadvantages. Reverse osmosis water is healthier than other systems, even though it has a higher overall quality. Your personal preference will dictate which system you prefer.

This post was written by a water treatment expert at Pure Blue H2O. At Pure Blue H2O we are the providers of the best reverse osmosis filter! We know that the best product comes from the best materials. They offer whole home water solutions such as reverse osmosis systems, shower head filtration, filter replacements, and a variety of similar products. Their focus is to provide Americans with safe and clean water throughout the home.

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