How To Remineralize Reverse Osmosis Water

Reverse osmosis is the most common type of water filter. This allows drinking water to be filtered out from a whole host of contaminants including; salt, fluoride, and other chemicals that can cause health issues. There are two main ways to remineralize reverse osmosis water; either by adding minerals or through a combination of alkaline and acid-based additives. Here’s how you can remineralize reverse osmosis water at home with your own DIY approach.


How Does Reverse Osmosis Water Filter System Work?

Reverse osmosis is a process where water is filtered through a semipermeable membrane that separates molecules. This creates two streams of water – one being clean, fresh drinking water and the other being chemically treated wastewater.

Typically, the membrane will have pores that are so small, they will not allow any larger molecules to pass through. However, because there are bigger ions in the water stream, they are able to get through the membrane barriers. The process is done by applying pressure on one side of the membrane while using a low-pressure on the other side. This pressure differential forces pure water to go across the membrane while retaining any contaminants on its other side.

Do you need to Remineralize reverse osmosis water?

Many people invest in a reverse osmosis water filter to remove contaminants from their drinking water. But now you’re wondering, what happens to the minerals?

In traditional water filters, the minerals are usually left behind as part of the process. In reverse osmosis filters, however, minerals are also removed from the water as a result of the filtration process. The downside is that without remineralization, drinking filtered water could have a negative effect on your health over time.

If you’re struggling with choosing between a traditional or a reverse osmosis filter for your home, remember that both methods have benefits and drawbacks. There’s no right answer when it comes to this question.

The good news is that you can remineralize your water by adding minerals back in or through a combination of alkaline and acid-based additives. Here’s how to do it yourself!

How to Remineralize Reverse Osmosis Water

Reverse osmosis water filters remove a lot of the minerals from your drinking water. The good news is that you can add minerals back in, in order to remineralize reverse osmosis water.

There are two ways to remineralise reverse osmosis water: by adding minerals or through a combination of alkaline and acid-based additives.

1) Add Minerals

One way to remineralise reverse osmosis water is by using a mineral powder. Mineral powders can be found at pharmacies and health food stores, and they contain important minerals like magnesium, calcium, potassium, and sodium. There are also different types of mineral mixes for people with different needs—like if you have an illness or need a detox—so make sure you find one that will work for you!

2) Alkaline & Acid-Based Additives

Another way to remineralise reverse osmosis water is through the use of alkaline and acid based additives. These additives increase the pH level of your drinking water. For example, electrolytes neutralize acids in the body while reducing the amount of toxins that enter into it. They also enhance minerals levels which can then be absorbed into your body.

3) Water Filters

Lastly, you can use water filters to remineralise reverse osmosis water. Water filters with minerals can be found at pharmacies and health food stores, and they come in different forms like a pitcher or in blocks you can add to your water. With this option, you don’t need to add any additional minerals because the minerals are already in the filter itself.

Adding Minerals to Reverse Osmosis Water

The most common way to remineralize reverse osmosis water is by adding minerals. Pour a variety of natural, healthy minerals and salts (like Himalayan salt or sea salt) into the water and stir to dissolve. It’s possible for these ingredients to clump together, so make sure you break up any lumps before stirring.

How do I Know When to Stop Adding Minerals?

When you find an additive that works for you, and your body feels good, then stop adding more. If you keep adding minerals, the water can become too alkaline and/or bitter tasting. You can always add more minerals later if needed.

To test for the right level of alkalinity or acidity in your water, there are two ways: test strips or a pH meter. You will want to test the water after it has had some time to rest in a glass container. The best results come from testing both before and after the addition of any additives (acid-based or alkaline-based).

The easiest way to test the pH is with test strips. Simply dip the strip into a glass of water and compare the resulting color to the chart on the packaging. You will want to test both before and after adding acid or alkaline additives.

Additives to Remineralize Reverse Osmosis Water

When remineralizing reverse osmosis water, there are two main methods that can be used to complete the process. The first is adding minerals directly to the drinking water. The second method is a combination of alkaline and acid-based additives.

The first method, adding minerals directly to the drinking water, has been shown to have some success. It’s also the cheaper option but it doesn’t always work as well as you would want it to. This DIY approach can take up space in your fridge or freezer if you’re not careful with storage which could lead to decreased effectiveness due to being stored for too long.

The second method, a combination of alkaline and acid-based additives, is also an option. There are many types of additives that can be used this way including calcium chloride or sodium bicarbonate. However, depending on your needs and budget you may need to do some research on these products as they aren’t regulated by the FDA like mineral supplements which can cause some confusion when trying to pick one out.

What is the Best Way to Remineralize water?

Water is one of the most important substances in our body. It plays a key role in regulating your metabolism, transporting nutrients, and maintaining your electrolyte balance. Drinking water that is rich with minerals can give you more energy, help you maintain a healthy weight, improve your skin glow, and reduce the number of muscle cramps you experience.

What’s the best way to remineralize water? There are two main ways: Adding minerals or adding alkaline-acid additives.

The most popular way to remineralize water is by adding mineral salts to the reverse osmosis filtration process. This process will make sure that your water has a pH level between 7 and 9 and contains calcium, magnesium, potassium and other trace minerals.

If you want to skip the mineral salts and use an acid-based additive instead (such as potassium bicarbonate), you should use at least 1 teaspoon per gallon of reverse osmosis filtered water for best results.


How can I Add Minerals to RO Water Naturally?

There are two ways to remineralize RO water naturally. One way is by adding minerals to the water. Alternatively, you can use a combination of alkaline and acid-based additives.

How do I Know When to Add Which Additives?

When you start with RO water, add the acid-based additives first. If your body feels good, you may not feel the need to add any alkaline-based additives. However, if your body feels uncomfortable from the acidity or the water is too acidic for your taste, then it is time to start adding alkaline-based additives.

Follow the instructions on the bottles of these natural RO water additives and adjust according to your taste. Keep adding until you get a pH reading between 7 and 8 on a test strip or pH meter. These readings are not exact, but they are close enough for you to get a general idea of the pH of your water.

So how do you remineralize your RO water naturally? There are two ways:

1) Add Minerals to Your Water

You can use a variety of mineral supplements or find naturally occurring minerals in some foods and drinks such as spinach and almonds. Just be sure not to go overboard on any one specific mineral as they can interfere with each other’s absorption in your body.

2) Combine Alkaline and Acid-Based Additives

You can add an alkaline-based food additive like baking soda or eat foods rich in potassium such as bananas, avocados, leafy green vegetables, tomatoes, potatoes,etc.

Is it Really Healthy to Drink Demineralized Water?

One of the most common misconceptions about reverse osmosis is that it removes all the minerals from the water.

While this is true, many people are unaware that reverse osmosis also leaves behind a host of contaminants that are much worse for you than just salt or fluoride. These include but aren’t limited to: arsenic, uranium, nitrates, chlorides, and heavy metals.

This is especially important because when you drink reverse osmosis water your body will have difficulty absorbing essential nutrients like calcium and magnesium. The result? Poor bone health in both adults and children which can lead to obesity and chronic pain.

What is Mineral Water Good for?

Reverse osmosis does remove some of the minerals from the water, which is one of the reasons why people may not enjoy it.

However, mineral water still has plenty of health benefits that make it worth drinking. Minerals are important for many bodily functions including; heart health, bone strength, and enhancing your immune system. A daily intake of these minerals can help to reduce the risk of chronic diseases like high blood pressure, diabetes, cancer, stroke, and osteoporosis.

Mineral water also provides a lower calorie alternative to other types of beverages. It’s free from sugar or caffeine and contains fewer calories than juices or carbonated drinks. This makes it an ideal beverage for those looking to manage their weight or lose weight.

You can remineralize reverse osmosis water by adding minerals back into it through natural means – either by using salt or natural mineral sources like vegetables and fruits. There are also alkaline-based additives available to purchase which act as an acid neutralizer to balance out the pH levels in your water for you. Either way you choose to remineralize your reverse osmosis water at home will help you achieve optimal pH levels and better hydration overall!


Reverse osmosis water is not the most mineralized water available; thus, people often wonder if they need to remineralize it. The answer is yes. Reverse osmosis water is also acidic and has a lower pH level, which can increase your risk of cardiovascular disease and osteoporosis. Adding minerals to your reverse osmosis water will give it a higher pH level and will even out the acidity. There are many additives that you can add to your reverse osmosis water to remineralize it, but some of the best include: ionized minerals, ionized alkaline waters and ionized waters with minerals.

Meet the author: Paul White

Paul is water engineer by trade and is very passionate about innovative solutions for water filtration. His goal is to make drinking water accessible and affordable to all. An avid runner, he is currently training for a marathon. “Running is my sanity. Writing is how I organize my thoughts. I’m a poet and writer who is passionate about change. I aspire to be the best version of myself, and to help others do the same.” Learn more about Paul and the rest of the team.