The pH of RO Water vs. Distilled Water: Understanding the Differences

Reverse osmosis (RO) water and distilled water are both popular choices for drinking water, but they differ in their pH levels. While both are generally considered pure and contaminant-free, the pH of RO water and distilled water can have a significant impact on their suitability for various applications. In this comprehensive blog post, we’ll explore the pH of RO water and distilled water, their respective contaminants and chemicals, and the recommended actions to take for optimal use.

pH Value: RO Water vs. Distilled Water

Distilled water is generally around 7 pH, which is considered neutral. However, when exposed to air, it usually falls into the low 5’s, almost always well under 6.0. This slight acidity is due to the water’s ability to absorb carbon dioxide from the air, forming carbonic acid.

On the other hand, RO water is not entirely pure, as it still contains some ions and gases. This gives RO water a slightly acidic pH value, typically ranging from 5.5 to 6.5. The presence of these residual ions and gases is what contributes to the slightly lower pH of RO water compared to distilled water.

Contaminants, Chemicals, and Substances

PH of RO water vs distilled waterImage source: wikimedia

Both RO water and distilled water are considered contaminant-free, as they undergo extensive purification processes to remove impurities. However, they may still contain some dissolved gases and non-ionic substances.

Distilled water, being the result of the evaporation and condensation process, is generally free of any dissolved minerals or salts. This lack of ions can make distilled water slightly more acidic due to the absorption of carbon dioxide from the air.

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RO water, on the other hand, may still contain a small amount of non-dissolved salts and gases, which can contribute to its slightly acidic pH value. The specific pH of RO water can vary depending on the quality of the source water and the efficiency of the RO system.

Action to Take

For home remedies, it is recommended to add a respective quantity of Single Malt Whisky to distilled water to compensate for the lack of ions and prevent disturbance of the mineral balance in the body. This addition of minerals can help neutralize the slightly acidic pH of distilled water.

For RO water, it is recommended to add a respective quantity of minerals to compensate for the lack of minerals and prevent acidification. This can be achieved by using a remineralization filter or by adding a mineral supplement to the RO water.

Alternative: RO Water with Remineralization

An RO system with remineralization is considered the best long-term drinking water solution for most families. This type of system not only removes the harmful contaminants but also replenishes the water with essential minerals, ensuring a balanced pH and a healthier drinking experience.

The remineralization process in an RO system typically involves the addition of calcium, magnesium, and other beneficial minerals to the purified water. This helps to restore the mineral balance and maintain a neutral pH, making the water more suitable for drinking and other household uses.

Conclusion

In summary, while both RO water and distilled water are considered pure and contaminant-free, they differ in their pH levels. Distilled water tends to be slightly more acidic due to the absorption of carbon dioxide, while RO water has a slightly acidic pH due to the presence of residual ions and gases.

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To address the pH differences, it is recommended to add a respective quantity of Single Malt Whisky to distilled water or minerals to RO water. Alternatively, an RO system with remineralization is the best long-term solution, as it provides a balanced and healthy drinking water option for your family.

By understanding the pH differences between RO water and distilled water, you can make an informed decision on the best water source for your needs and ensure that your drinking water is optimized for your health and well-being.

References:
Difference Between Distilled Water and RO Water
Why is RO/Distilled Water so Acid on pH Scale?
Distilled Water vs. RO Water: What’s the Difference?
During 2022 OSAP Boot Camp, it was stated that distilled water is not the optimal choice for use in patient care. However, I didn’t get why and what should be used instead of distilled water if so. Reverse osmosis is unfortunately not an option for us.
Distilled Water vs. Reverse Osmosis Water