lasy drinking a glass of ionized water

We review the best water ionizer machines of 2021 so you can choose the perfect machine for your home.

Our Independent Reviews and Buyer’s Guide will help you choose the best water ionizer for your individual needs.

Discover the incredible benefits of ionized water, and save time and money by making your own.


Imagine having freshly made ionized alkaline water at your fingertips every day. Well, now you can with a home water ionizer machine.

Discover the benefits of making clean, refreshing ionized water any time, any day – from the comfort of your kitchen.


1: Tyent UCE-11 Under Counter Water Ionizer
2: Air Water Life Aqua Ionizer Deluxe
3: Kangen Leveluk K8 Water Ionizer
4: Bawell Platinum Alkaline Water Ionizer


the water ionizer reviews



The Tyent UCE-11 under sink ionizer is the best water ionizer on the market in 2021. It boasts superior ionizing performance and build quality compared to all its competitors.

This device has an excellent pH range of 1.7-12, meaning it produces a very wide range of alkaline and acidic water. It is constructed using 11 platinum ionizing plates and comes with a lifetime guarantee.

The under-counter unit comes with a dual filtration system to produce ultra-high quality purified water. And a visual display will alert you when the filters have reached the end of their lifecycle and need to be replaced.

It is controlled using a colorful easy to use touch screen panel – just like a smartphone – and is preprogrammed to produce alkaline and acidic water of different strengths to cater for all your needs.

The Tyent UCE-11 under counter ionizer is the best water ionizer out there in 2021. Outstanding performance, excellent build quality, and a lifetime guarantee place this ionizer head and shoulders above the competition.




This countertop water ionizer from Air Water Life is an excellent choice for any kitchen. Despite its compact size, it delivers a real punch when it comes to producing clean, pure ionized water.

You can vary the pH output of the water by choosing one of seven pre-programmed pH settings. This allows you to choose between alkaline, acidic, or pH-neutral water and choosing a particular strength for each.

The Aqua Ionizer comes with a built-in active carbon water filtration system that purifies your water and removes contaminants and impurities. It has an ORP rating of -600mV and the filter has a lifetime capacity of 4,000 liters.

The device is constructed from FDA-approved plastics for water consumption safety and oxidation resistance and employs seven platinum-coated titanium plates.  It is very economical to operate and comes with a low power consumption rating.

The Air Water Life Aqua Ionizer Deluxe is an excellent choice for any kitchen. It allows the user to set the pH level from a preprogrammed list, comes with a -600mV water filter, and is self-cleaning.



glass of ionized water

• PH RANGE: 2.5 – 11.5

The Kangen K8 Ionizer from Enagic is a powerful, high-end water ionizing machine that comes with a significant price tag. This ionizer uses eight platinum-coated titanium plates to drive the ionizing reaction and facilitate dissolved hydrogen production.

The countertop device produces five different types of water to cater to all your domestic needs – strong alkaline Kangen water, alkaline Kangen water, neutral pH water, cosmetic acidic water, and strong acidic water for cleaning.

It comes with an impressive activated carbon and calcium sulfite combination filter that removes both microbes and chlorine from the water. The filter has an expected lifecycle of 1,500 gallons of water.

The K8 is controlled using a large color LCD touch panel and even comes with a voice prompt to confirm the type of water you have selected.

The screen panel also provides information on the water filters, when they need to be changed, and instructions on how to clean the device.

The Kangen K8 LeveLuk is a top-performing water ionizer and water filtration system. It is used to create the trademarked ‘Kangen’ alkaline water. The device produces five different types of ionized water to meet all your household consumption, cleaning, and cosmetic needs.



• PH RANGE: 2-12
• ORP RANGE: +600 to -800mV

The Bawell Platinum Alkaline Water Ionizer is a good all-round, flexible performer. It can be operated as a counter-top device or installed into your water line beneath the counter to save space.

The ionizer can be used to produce both alkaline and acidic water with a pH range of 3 to 12 and an ORP value of +600mV to -800mV and it comes with a dual two-stage water filtration system for cleaner purer water.

The filters have an expected lifecycle of 5,000 liters or 1,320 gallons and should last most users for a period of 12 months. The control panel displays the current status of the filters and notifies you when they are due to be changed.

It is operated using a clear and intuitive touchscreen control panel that displays the water alkaline level, pH, ORP, and water filter status. Installation is pretty straight forward and it comes with a short instructional DVD to help you get up and running.

The Bawell Platinum is a good all-rounder. It can be used as a counter-top device or installed beneath your sink. It performs well with a pH range of 2-12, an ORP of +600 to -800mV, and a dual water filtration system. And, it comes with a lifetime warranty.


glass of ionized water sitting on a rock


The ability of an ionizer machine to adjust the pH of water is a critical feature. The pH of a water sample is a measure of how acidic or alkaline it is.

The pH scale runs from 1-14. Water with a pH below 7 is acidic, while anything above 7 is alkaline.  Some water ionizers allow you to set the pH you want to achieve for your water.

Since you will be using your ionizer to make alkaline and acidic water, take a moment to check the pH range of the device.  A wider pH range will allow you to make stronger ionized alkaline and acidic water.

A pH range of 3.0 to 10.5 will cover domestic uses. This will cover all your household alkaline and acidic water needs.

Acidic water is used for cleaning and sterilizing, while the alkaline water is used for cooking and drinking. Remember, anything below 7 is acidic and anything above 7 is alkaline.


In general, the more ionizing plates in the machine the more efficient it will be at ionizing your water supply. Look for machines with at least 5 plates and upwards.

The water alkalizing machines on the budget end of the scale generally come with 5 plates. While the high-end devices have up to 11 plates.

The more plates you have inside your ionizer the more power you will have to run the electrolysis reaction that is responsible for ionizing your water. Simply put, more plates equals more power.


The ionizing plates inside the machine are the parts responsible for the electrolysis reaction that creates ionized water from regular water. It is this reaction that will create your ionized alkaline water and acidic water.

The quality and efficacy of these plates are vital to the ionizing capability of the device. In general, there are two types of plate – mesh and solid.

Mesh plates perform best in terms of the electrolysis reaction. They are more efficient at driving the chemical reaction that ionizes the water. However, solid plates are stronger, more durable, and last longer.

A third type of set-up involves the use of a combination of mesh and solid ionizing plates. This arrangement means you get the high performance of a mesh electrical plate with the durability of a solid plate. This offers an appealing balance between the two types.


The best water ionizers come with a water filter built into the device. This means the machine will purify the water to remove contaminants as well as ionize the water. Check to see if the machine comes with a water filter and see what type of filtration system it uses.

The most common type of filters are ceramic and activated carbon filters. These are great for removing impurities and improving the quality of your drinking water.

Points to consider when assessing the type of filter are – how long will it last and how much will it cost to replace it.

The expected lifespan of a filter will vary depending on usage. Take a look at the manufacturer’s specification to get an idea of how long it will last for you.

Also, check to see how much they cost and that you can easily order a replacement when the time comes.


The best types of water filters used are active carbon and ceramic filtration systems. Both these set-ups are highly efficient at removing microbes, heavy metals, pesticides, and chlorine.

As the water passes through the filter, contaminants come into contact with the filtration media. The media is specially designed to bind to these contaminants and hold them in place. This means they remain inside the filter while the purified water passes through.

Take a moment to consider the filtration system set-up. Does the ionizer come with a single or dual filtration system? A dual system uses two filters and is more efficient compared to a single arrangement.

Many of the best electric water ionizers come with a dual filtration setup.

Bear in mind that filters will have to be replaced when they reach the end of their lifecycle. You will need to consider – how often will they need to be replaced, how much they will cost, and how easy it is to order a replacement.



smiling friendly lady


ORP stands for oxidation reduction potential. The rule for ORP is the lower, the better. ORP describes the level of electron charge in the water and is measured in millivolts.

Oxidation is something that occurs naturally in the body and can lead to cell and tissue damage. It happens when there is an imbalance between free radicals (which cause the damage) and anti-oxidants (that protect the body).

It is believed that water with a low ORP value can help limit the damage caused by oxidation inside the body. However, there is little scientific evidence available to prove the protective properties of low ORP water.


Some alkaline water ionizing machines come with a UV purification light. Essentially it is an additional layer of water purification. They use ultraviolet light to disinfect microbes and improve the quality of the drinking water.

Is this something you are interested in? UV light is an effective and environmentally safe method of water purification.

It works by eliminating the reproductive potential of harmful microbes by exposing them to UV light with a specific wavelength. A UV lamp within the unit will emit a lethal dose of UV light to deactivate microbes in your water.


You can choose between a countertop ionizer or having one installed under the counter. Advantages of an under-counter unit include – it takes up less space in your kitchen, but requires additional installation as it will have to be hooked up to your water supply.

If you have free counter space you may prefer to opt for a countertop unit that can be filled with water manually as you need it. These are easy to position, can be moved when required, and require little installation.

There is also a third type that combines the two types. A convertible water ionizer machine can be used as a countertop unit or be installed directly to your water supply. Have a think about which set-up would work best for you.

If you are looking for an under sink ionizer, check out our under counter specific guide – best under counter alkaline water ionizers.


The installation and set-up requirements of your water ionizer machine will depend on whether you opt for a countertop or under-counter unit.

A countertop unit requires little to no installation. It is essentially a plug-and-play device. Just plug it in, add water, and away you go.

An under counter unit will require a little more work. It will need to be hooked up directly to your water supply, so unless you are a DIY aficionado you will need to get a tradesman in.

Check out the installation requirements before you make a purchase so you know what to expect.

The set-up and operation of the device are very straightforward. Once the unit has been successfully installed, regular operation is a breeze. Each machine will differ slightly in operation but all are intuitive and easy to use.


The price of a water ionizer varies greatly depending on the model and the range of features included. The most basic devices come in around $750.

And you’ll find the majority of models produced in the region of $1,000 to $1,500. At the higher end of the scale, you will see prices in excess of $2,500.

Like anything, you get what you pay for. But if you shop around and do your homework you should be able to find a high-performance water ionizer for between $1,000 to $1,500.

Take the time to shop around and get the best alkaline water ionizer for your budget.


There are two areas you will need to consider for the ongoing maintenance of your machine – Filter Replacement and Cleaning.

Both are straight forward and by performing some routine basic tasks you will prolong the life cycle of your water ionizer.


You will need to periodically clean the inside of your ionizing machine in the same way you would periodically clean any other kitchen device.

If you live in an area with a hard water supply you may have to remove the build-up of limescale.

Check your manufacturer’s manual for detailed instructions on cleaning.  Many of the top-end devices come with a self-cleaning feature as standard.


If your device contains a water filter, and the best water ionizer machines do, you will need to replace these when they reach the end of their lifecycle. Check the filter specification to see how often they need to be replaced.

Most models require a new filter every 6 to 12 months. Also, check to see that replacement filters can be easily ordered and factor this price into your decision-making process.


Will you require the manufacturer’s support after you purchase your water ionizer? Most machines are easy to use and can be set up in minutes on your kitchen countertop. But, if you feel you may need after-sales support take a look and see what’s on offer.

If manufacturer’s support is available it could be useful to answer any questions you may have down the road. Some companies offer live chat or a regular customer support telephone number.

This can be a convenient way to quickly resolve any issues or queries you have over the lifetime of the product.


Does the device come with a warranty? The best water ionizer machines come with warranties ranging from 6 months to 1 year. A warranty gives you peace of mind that if something unexpectedly fails you can get it repaired or replaced free of charge.

You should take a moment to see if a warranty is offered before committing to a purchase. A warranty shows that the manufacturer has confidence in the quality of their ionizer machine.


frequently asked questions

What Is a Water Ionizer Machine?

A water ionizer machine is a device that ionizes regular water to create alkaline water and acidic water. It uses an electrochemical process to ionize water and separate it into two groups. The alkaline water and acidic water can then be collected separately.

What Does a Water Ionizer Do?

A water ionizer creates alkaline water and acidic water from regular tap water. It uses an electrical current to ionize water. This breaks the water down into two distinct groups – alkaline and acidic. Ionized water has a range of advantages over regular tap water.

What Is Ionized Water?

Ionized water is a special type of water that has been through an electrochemical process called ‘water ionization’. Ionized water contains two distinct types of water. The water close to the electrical anode is acidic and the water close to the cathode is alkaline.

The two water groups are then siphoned off and collected separately. Acidic water and alkaline water have several advantages and applications.  For more information see – What Is Ionized Water?

What Are The Benefits of Ionized Water?

Ionized water creates alkaline water and acidic water. Both have a number of potential benefits. Alkaline water has seen a surge in popularity recently. Enthusiasts believe drinking alkaline water boosts health and neutralizes excess acidity in the body.

However, these claims are disputed by medical professionals who point out there is no scientific evidence to back up these claims. Acidic ionized water is popular for household cleaning, and for rinsing hair and skin.

What Are The Benefits of a Water Ionizer Machine?

A water ionizer machine is a great investment. It means you can make your own ionized water at home from regular tap water and stop buying expensive bottled ionized, alkaline, and acidic water.

A water ionizer machine will allow you to create ionized alkaline water and acidic water using your regular tap water supply. Alkaline water and acidic water have a range of special applications and benefits outlined above.

What Is It Used For?

The main uses for ionized water are for its potential health benefits, hair & skincare, and household cleaning and disinfecting. Drinking ionized alkaline water is believed by enthusiasts to neutralize excess acidity in the body and boost health.

Ionized acidic water is popular for cleansing the skin, rinsing hair, and watering plants. And, strong ionized water is used for household cleaning and disinfection. Strong ionized water is not for human consumption.

What Is The Science Behind Water Ionization?

A water ionizer uses an electrochemical process, (sometimes referred to as electrolysis), to ionize the water. This process involves passing an electrical current through the water using an anode and a cathode.

An anode is a positively charged electrode, and a cathode is a negatively charged electrode. When the electrical current is applied acidic water gathers around the anode and alkaline water gathers around the cathode.

During this process, at a molecular level, if the number of OH- is greater than the number of H+ then the water is alkaline. And, if the number of H+ ions is greater than the number of OH- ions the water is acidic.

The machine then funnels out the two groups of water so they can be collected separately – ionized alkaline water and ionized acidic water.

Water Ionizer Machine Price

The price of a water ionizer machine varies depending on the quality and efficiency of the device. Water ionizers on the lower end of the scale sell for $750, while the majority of units come in at between $1,000 to $1,500. High-end units retail for $2,500.

Is a Water Ionizer Worth It?

If you currently buy and use bottled alkaline water or bottled acidic water – then a home water ionizer machine is an excellent investment. It will save you time and money. You will no longer have to travel to a store to purchase expensive bottled water.

You can quickly, and cheaply make your own at home. It’s also good for the environment as you want be buying and disposing of plastic bottles anymore.

Is Ionized Water Good For You?

When people talk about drinking ionized water they mean ionized alkaline water. Advocates of alkaline water believe it comes with a wide range of health benefits including – better digestion, skin health, and blood pressure. However, the scientific evidence to back up these claims does not exist.

Ionized Water vs Alkaline Water

What is the difference between ionized water and alkaline water? When water is ionized, regular water is broken down into two groups – alkaline water and acidic water. Ionized water contains both these types. They are then collected separately as alkaline water and acidic water.

Can Ionized Water Be Used For Cleaning?

Yes, ionized water is excellent for cleaning. Both strong acidic and strong alkaline ionized water are very effective cleaning solutions. They are used to disinfect kitchen and bathroom surfaces. They are also popular for cleaning food during preparation.

Is Ionized Water Better Than Regular Water?

Ionized water has unique properties that make it ideal for specific applications. For example, alkaline water is a popular drinking water as many people believe it boosts health. While strong ionized water is a powerful disinfectant and used as a household cleaning solution.

Can You Drink Ionized Water Every Day?

Advocates of ionized water drink alkaline water regularly, and many every day. They believe it restores balance in the body and neutralizes acidity levels. The research to back up these health claims has not been clearly established.

How To Make Ionized Water

You can make ionised water at home using a water ionizer machine. The process is simple and all you need to add is regular tap water.

The best water ionizers are very easy to use and you can quickly begin creating your own ionized alkaline and ionized acidic water, saving you time and money.  For more information see our guide – how to make alkaline water at home.

What is ORP?

ORP is used in water testing to determine how clean a sample of water is. It stands for Oxidation Reduction Potential. The test is commonly used in swimming pools and home spas to ensure water is clean and free of contaminants. ORP measures the ability of water to either oxidize or reduce another substance.

How Many Plates Should an Ionizer Ideally Have?

The best water ionizer machines use five ionizing plates or more. The water ionizer plates are the primary component of a water ionizing machine. They are the part of the machine that converts regular tap water to ionized water via electrolysis.

Why are Kangen Water Ionizers So Expensive?

Kangen water ionizing machines can appear expensive due to the way they are sold to the market. They are often sold via multi-level marketing methods which involve the payment of commission to sellers. This can push up the price of a Kangen machine.

Does Ionized Water Kill Bacteria?

Yes, ionized water can be used to kill bacteria and other microbes. Strong ionized water is a powerful disinfectant and is a popular choice in many households for kitchen and bathroom cleaning. In particular, strong acidic ionized water is effective at killing bacteria and disinfecting surfaces.

How Long Does Ionized Water Stay Ionized?

Depending on how the ionized water is created and how it is stored – the length of time it remains ionized will vary. The alkaline properties of the water are at their best when it is first created and will slowly degenerate over time. You should store your ionized water in sterile airtight glass or a stainless steel container.

How to Know if a Water Ionizer Needs Cleaning?

A water ionizer should be cleaned routinely like any other kitchen appliance. Refer to your manufacturer’s instructions for information on when and how often to clean your ionizer. If you have a hard water supply you will need to remove the build-up of limescale in the device.

How to Clean Your Water Ionizer

In general, cleaning a water ionizer is no more difficult compared to cleaning any other kitchen device. For detailed instructions on how to clean your ionizer, you should refer to the operation manual that comes with it.

Each unit is slightly different and you should follow the specific cleaning instructions provided by the manufacturer of your device.

Can I Store Ionized Water?

Yes, you can store ionized water. Both acidic and alkaline ionized water can be stored for use at a later time. Just remember that the ionized properties of the water are at their strongest when it is freshly ionized and these will become weaker over time.

The length of time you can store the ionized water will depend on the initial ionizing strength of the water and how it is stored.

What Is Strong Ionized Water?

Strong ionized water is a special type of ionized water that has been made more acidic or more alkaline than regular ionized water. Strong acidic ionized water has a very low pH and is more acidic than regular acidic ionized water.

And, strong alkaline ionized water has a very high pH and is more alkaline than regular ionized alkaline water. Strong ionized water should never be consumed.

Water Ionizer Machine/Brand Comparison

The best water ionizer brands currently on the market come from Tyent, Air Water, Kangen, and Bawell.  If you are planning on buying a device for your home, we recommend you take a look at these models and choose the one that works best for you.

Is Ionized Water Safe to Drink?

In general, ionized water or alkaline water is safe to drink, just make sure the water is not too alkaline or too acidic. If you have any concerns at all you should consult a medical professional to see if ionized water is suitable for you. You should not consume ionized water that is acidic or strongly alkaline.

What About Kangen Water?

Kangen water is ionized water produced by a Japanese water ionizer machine called an Enagic machine. ‘Kangen’ is a trademarked term and cannot be used for water produced by any other type of machine. Enagic is a Japanese company, and the word Kangen means ‘return to origin’ in Japanese.



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