Best Water Distiller

Distillation is one of the oldest water methods that naturally occur in our environment. It’s also one of the most effective ways to purify water and make sure the water you consume is free from any contaminants. While there are commercially available bottled distilled water everywhere, you can also make a full gallon within hours right from your own kitchen counter. There are many benefits to using a countertop water distiller, one of which is its ease of use and maintenance. 

If you’re looking to buy your own water distiller for your home, we have gathered all the information you need before you make a purchase. To make the decision even easier, take a look at our top eight picks below, or use our buying guide to choose the best water distiller for you. 

Best Water Distiller Comparison Table

  • Dimensions: 9.1 x 9.1 x 15.3 inches
  • Production rate: 1 gallon/4 hours (6 gallons/day)
  • Material: Stainless Steel and Glass
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  • Dimensions: 10 x 10 x 14 inches
  • Production rate: 1 gallon/5.5 hours (4 gallons/day)
  • Material: Stainless Steel and Glass
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  • Dimensions: 9 x 9 x 15 inches
  • Production rate: 1 gallon/4 hours (6 gallons/day)
  • Material: Stainless Steel and Glass
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  • Dimensions: 16.5 x 12 x 11.3 inches
  • Production rate: 1 gallon/6 hours (4 gallons/day)
  • Material: Stainless Steel and Glass
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  • Dimensions: 8.1 x 8.1 x 15 inches
  • Production rate: 1 gallon/4 hours (6 gallons/day)
  • Material: Stainless Steel and Glass
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  • Dimensions: 9.1 x 9.1 x 15.3 inches
  • Production rate: 1 gallon/4 hours (6 gallons/day)
  • Material: Stainless Steel and Plastic
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  • Dimensions: 20 x 13.5 x 11.7 inches
  • Production rate: 1 gallon/4 hours (6 gallons/day)
  • Material: Stainless Steel and Glass
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  • Dimensions: 15.94 x 12.6 x 12.17 inches
  • Production rate: 1 gallon/5 hours (4 gallons/day)
  • Material: Plastic
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Top 8 Picks for the Best Water Distiller

CO-Z Water Distiller

CO-Z Water Distiller

Production rate: 1 gallon/4 hours (6 gallons/day)

Material: Stainless Steel and Glass

Power: 750W

Dimensions: 9.1 x 9.1 x 15.3 inches

One of the top choice water distillers for homes is the CO-Z Stainless Steel Water Distiller. This FDA-approved machine can produce 1/4 gallon of distilled water in an hour or up to 6 gallons per day. Its inner container is made from stainless steel 304 to withstand the heat, while the exterior comes in brushed nickel, gold, and red finishes. The included water pot is made with premium glass and all plastic parts are food-grade and BPA-free.

The CO-Z water distiller has a highly efficient heating element to make the process much faster. It works by boiling the water inside the container until it evaporates, condenses, and returns to liquid form. The activated carbon filter inside removes dissolved solids, volatile organic compounds (VOCs), and almost all other contaminants to provide safe, pure, and better-tasting water.

To prevent overheating and ensure your safety when using the water distiller, CO-Z has an auto switch-off feature that automatically turns the machine off if water is running low, or when the temperature exceeds 320℉. When the chamber is full, it will start to work automatically when you power it on. The one-gallon glass collection bottle has a large opening to make cleaning more convenient. The product comes with a one-year warranty, although a few users have noted that it starts to malfunction within a few months of use.

• Quick distillation process
• Premium glass carafe
• Affordable price
• Filters need changing every 10 uses
• Runs too hot

Megahome MH943SBS

Megahome MH943SBS Water Distiller

Production rate: 1 gallon/5.5 hours (4 gallons/day)

Material: Stainless Steel and Glass

Power: 580W

Dimensions: ‎10 x 10 x 14 inches

Our second choice water distiller comes from the popular brand Megahome by Nutriteam. The company has over 22 years of experience in water purification, with the MH943SBS model as the flagship water distiller. It features a fully stainless steel interior and exterior, including the boil chamber, upper steam dome, and condensing coils. The carafe is made from glass and zero plastic.

This Megahome countertop water distiller produces water at a rate of one gallon every 5.5 hours or about four gallons in a day. It distills the water at 212℉, the optimum temperature for removing water contaminants. You can even distill seawater with this model. To start the distillation process, simply fill the kettle with water and push the start button. An (optional) activated charcoal filter catches VOCs like chlorine or other toxins that can form into a vapor before it’s stored in the carafe.

The MH943SBS shuts off automatically when the water is running low. There is no power switch so you may want to attach a timer switch and set it to five hours. This can prevent the distiller from running when the water has boiled out and also increase its lifespan. The unit is covered by the manufacturer warranty for one year and comes with a six-month supply of filters. Although, it’s not the cheapest option out there.

• Best-selling, top-rated water distiller
• Full stainless steel and glass
• Free six months supply of filters
• No on/off switch
• Not the cheapest option

Waterwise 4000 Water Distiller

Waterwise 4000 Water Distiller

Production rate: 1 gallon/4 hours (6 gallons/day)

Material: Stainless Steel and Glass

Power: 800W

Dimensions: 9 x 15 inches

Another good choice for a water distiller is the Waterwise 4000 with a 304 stainless steel condenser and a glass carafe. It can produce one gallon of distilled water in four hours or a maximum of six gallons in 24 hours. The activated carbon filter removes most contaminants so you can enjoy clean and safe water at home.

To prevent the system from overheating, the unit will shut off automatically after it has produced a gallon of water. It will stop when the water runs out, and when you refill it the distillation will resume once the unit is turned on. All distillers accumulate scale and sediment in the boiling chamber, which you will need to clean regularly. Waterwise sells a cleaning product specifically for this, but you may also use other methods as per the manufacturer’s instructions.

You will also need to replace the carbon filter every two months, or after every 6 to 8 gallons of distilled water. It is available in packs for a cheaper cost, and this is the only maintenance required that involves any further costs after your initial purchase. While the overall construction isn’t much different from other models, some users have commented on the poor design of the glass pot and its lid. Also another drawback people have noted is there is no way to shut off the machine except by unplugging, which can pose safety issues.

• Quick distillation process
• Carbon filter reduces VOCs
• Poor carafe design
• Can only be turned off by unplugging the unit

H2o Labs Stainless Steel Water Distiller

H2oLabs Best-In-Class Stainless Steel Water Distiller

Production rate: 1 gallon/6 hours (4 gallons/day)

Material: Stainless Steel and Glass

Power: 565W

Dimensions: 16.5 x 12 x 11.3 inches

Another top-rated water distiller is the H2oLabs 300SS “Best-In-Class” Stainless Steel Water Distiller. The entire steam chamber and condensing coil is made from grade 304 stainless steel. All plastics used are Food-Safe and BPA-Free. This model also features a porcelain nozzle insert to make sure distilled water doesn’t touch plastic or metal. It can distill the entire kettle’s fill (one gallon) in six hours, or around four gallons per day.

It uses a 565-watt heating element to evaporate and condense water to filter out most contaminants. The heating element used is the ideal size for the job. Larger heating elements boil the water too rapidly, which can cause it to mix with contaminants and actually reduce water purity. This water distiller also uses an activated carbon filter that catches remaining impurities that are able to evaporate and condense with the water. 

Like most other water distillers, this H2o labs unit can be switched on simply by pressing a button and will only shut off when the distillation process is done or power is cut off. What’s great about H2oLabs is the activated carbon filter can last longer between changes, and the interior steam chamber is easy to clean. Included with the unit is a year’s supply of activated carbon pods and a jar of non-toxic cleaning crystals for removing the hard water scale.

• Slow boil allows for the production of extremely pure water
• Comes with one year supply of activated carbon filters
• Quite expensive
• More time-consuming distillation

Mophorn Water Distiller

Mophorn Water Distiller, 4L Stainless Steel

Production rate: 1 gallon/4 hours (6 gallons/day)

Material: Stainless Steel and Glass

Power: 750W

Dimensions: 8.1 x 8.1 x 15 inches

Another similar designed water distiller we recommend is this Mophorn model. Distilled water is produced at one gallon per four hours or up to six gallons per day. This CE certified water distiller ensures that all parts that come into contact with water are made of food-grade 304 stainless steel, including the internal tank, inner cap, water outlet, and inlet. It also comes with a durable glass water container. It uses an activated carbon filter to remove VOCs and produce pure and safe water.

For your safety and protection of the device, when the temperature is higher than 320℉/160℃ the power will cut automatically. Unlike most other water distillers, including some of our top picks, this Mophorn model has two buttons for the power switch: green for ON, red for OFF. This guarantees safe and convenient operation.

This water distiller equips a built-in four-blade aluminum fan rather than plastic to ensure heat dissipation and longer life. The unit also includes three packs of carbon filter for replacement, as well as a bottle of cleaning powder to dissolve any limescale buildup in the inner tank. One common issue that users have encountered is the product’s short life. Although for its price, it’s to be expected.

• Quick distillation process
• On/Off power switch makes operation more convenient
• Budget price
• Lower quality
• Shorter life

ROVSUN Countertop Water Distiller

ROVSUN Countertop Water Distiller

Production rate: 1 gallon/4 hours (6 gallons/day)

Material: Stainless Steel and Plastic

Power: 750W

Dimensions: 9.1 x 9.1 x 15.3 inches

ROVSUN offers a water distiller with a white baked-enamel body and stainless steel inner tank, inner cap, water inlet and outlet. Compared to other industrial looking models, the ROVSUN water distiller has a more modern look that can match your kitchen aesthetic. However, the complementary water pot is made from BPA-free, food-grade plastic rather than glass. 

The ROVSUN water distiller can produce up to one liter (¼ gallon) of water per hour, or a total of six gallons a day. This water distiller comes with the necessary safety features. It will automatically shut off when it has finished the distillation process of a gallon of water. The unit also has ventilation and a built-in aluminum fan to prevent overheating. It’s incredibly easy to set up and maintain. To start, simply push the Reset button. Although, note that it doesn’t have an “off” button so it will only shut off when water runs out or if you unplug it.

The distiller uses activated charcoal to eliminate VOCs and other contaminants in your water. It also comes with three additional activated charcoal sachets as well as a bottle of cleaning powder for easy maintenance. One drawback we found, however, is that the distilled water might taste and smell of rubber or plastic on your first uses, which should go away after the third time.

• Quick distillation process
• Modern design
• Free replacement filters and cleaning powder
• Leaves a faint rubber/plastic taste
• Can only be turned off by unplugging the unit

ECO-WORTHY 1 Gallon Water Distiller

ECO-WORTHY 1 Gallon Water Distiller

Production rate: 1 gallon/4 hours (6 gallons/day)

Material: Stainless Steel and Glass

Power: 750W

Dimensions: 20 x 13.5 x 11.7 inches

If you want a more modern design, the Eco-worthy water distiller is an excellent option for your home. It is made from 304 grade stainless steel from its interior to exterior, complete with a glass carafe. In four hours, this machine can distill one gallon of water or up to six gallons per day. It’s also very simple to use. Simply press the on/off button and the machine will start the distillation process. When all the water is processed, it will shut off automatically. You also have an option to use the timing function. It is recommended to set 3.5 hours when distilling four liters (around a gallon) of water.

It has a manual on and off power switch, making it very convenient and easy for you to cut off the power without needing to unplug the unit. It uses an activated carbon filter to ensure that the water you get would be free of chemicals and VOCs and other harmful impurities. It is also easy to set up and maintain. The unit comes with extra carbon filters and cleaning powder.

One disadvantage for the Eco-worthy water distiller is that it tends to be noisy during the process of water distillation. To avoid any disturbance, you can put it in a room away from living or sleeping spaces where the sounds wouldn’t bother anybody.

• Quick distillation process
• Simple to use and user friendly
• With on and off switch and timer function
• Can be too noisy

H2oLabs Model-200 Water Distiller

H2oLabs Model-200 Water Distiller

Production rate: 1 gallon/5 hours (4 gallons/day)

Material: Plastic

Power: 600W

Dimensions: 15.94 x 12.6 x 12.17 inches

Another water distiller from H2oLabs we recommend is the 200 model. It is lightweight and compact, and the user-friendly design makes it very easy to operate. It’s made from heat resistant food-grade ABS plastic, while the plastic collection tank is BPA-free. It can distill one gallon of water in about four hours or up to four gallons a day. Although, you may actually be able to process three gallons of water each day unless you wake up in the middle of the night to turn the unit on.

One of the advantages of using this water distiller is its design. Anyone will be able to operate it, even if they’re not tech-savvy, or for elderly people who usually have problems operating modern devices. The water container is easy to fill and the refill LED indicator will let you know when the distillation process is complete. Unlike most other models, this H2oLabs water distiller has an off switch so you won’t have to unplug it to shut off.

This water distiller comes to you ready to use, complete with storage tank, activated charcoal and anti-scale pods, and the lift-out, easy-fill water holding tank. The heating element on the Model 200 is inside the thermoplastic boiling tray and comes in direct contact with the water, instead of a stainless steel chamber with the heating element under the tank. This design can help reduce scale buildup which reduces cleaning and maintenance. Although, a few users note that the plastic construction makes the device appear cheap. 

• User-friendly and simple to use
• More convenient design and controls
• Made from mainly plastic, making it look cheap

What is a Water Distiller?

A water distiller is a type of water treatment that removes up to 99.99% of contaminants. It boils water into steam, then captures and condenses it, leaving contaminants behind. A water distiller typically consists of a boiling chamber, a heating element, cooling system and a separate storage tank.

What is a Water Distiller featured photo

The water distiller machine is usually made from plastic or metal and almost looks similar to a coffee pot. The bottom half of the body is where the heating and boiling take place, while the lid on top is where condensation occurs. You can unscrew the lid to access the boiling chamber and add water for distillation. Since countertop water distillers aren’t connected to a faucet, you’ll need to fill the chamber yourself. It can typically hold at least a gallon or four liters.

Water distillers normally have a small nozzle or spout protruding from the top where the distilled water drips directly down into the water holding tank. This tank is made from translucent plastic or glass, allowing you to see the water inside it. Note that a standard household water distiller needs to be plugged in to work, so make sure you place your unit near to a power supply. 

What is Distilled Water?

Distilled water is essentially water in its purest form, but it isn’t much different from other types of purified water. Some types may contain minerals, which is really the only factor that sets them apart from mineral and contaminant-free distilled water.

Distilled water has a higher quality than regular tap water, and is generally much better for drinking than most other types of water. You can also benefit from distilled water in many other ways, as you’ll learn in another section below.

We cannot determine the exact pH level of distilled water. Generally, distilled water has a pH level of 7, making it neutral (neither acidic nor alkaline). Once it is exposed to air, it absorbs carbon dioxide and the pH level could drop down to below 6, making it acidic.

How Does the Distillation Process Work?

Distillation is one of the oldest, natural ways to filter water. In fact, it happens around us every day—the sun heats water, water evaporates, then it condenses in the clouds, causing rain. The same process applies on a smaller scale in water distillers, where the water boils, becomes vapor, then condenses to form distilled water.

Distillation separates the water from other substances considering different boiling points. This removes almost all contaminants including bacteria, chemicals, and organic compounds. The following is the step-by-step process of countertop water distillers.

1. Water is heated in the unit’s boiling chamber. There is a heating element under the chamber which heats the water to its boiling point, producing steam or water vapor. 

2. Steam travels into a condenser. When steam rises, it passes out of a vent inside the boiling chamber then into a condenser usually made of stainless steel. Left behind in the boiling chamber are all impurities in the water that are incapable of converting into gas particles.

3. Steam condenses into liquid. Inside the condenser, a fan cools down the steam and turns it into water droplets. Then, these droplets pass through a post filter.

4. The activated carbon filter removes leftover impurities. The role of the post-filter is to remove any contaminants that may have made it through the condenser along with the steam. Through adsorption, the filter traps contaminants and prevents them from passing through. As an option, some water distillers may have a remineralization filter to add a healthy amount of minerals like calcium and magnesium, which have been removed in the distillation process. 

5. Lastly, the water droplets collect in a holding tank. Once the water droplets have passed through the filter(s), they drip into the collection tank and are now ready for drinking.

Depending on your water distiller, you may need to wait from four to six hours to get one full gallon of distilled water. The process may seem too long, but household water distillers produce water literally droplet by droplet. It will take several hours to fill the water pot but once the process is complete, you get ready-to-drink distilled water.

What is Distilled Water Used For?

You’ll find many uses for distilled water in your house. For one, it’s clean and safe for consumption, and it’s also useful in a lot of household needs. Here are some of the ways distilled water is commonly used at home.


Perhaps the most common reason people look for any type of water treatment is for drinking purposes. Distilled water is particularly great for drinking because it contains almost no contaminants, chemicals, or microorganisms that could affect the water quality and taste. 

Medical sterilization

Distilled water is commonly used for medical sterilization purposes in hospitals to clean instruments for surgery. Due to its lack of mineral content, using distilled water prevents cross-contamination and infection. It can also be used for cleaning wounds or as a mouth rinse at the dentist.

Cooking and baking

Similar to drinking, distilled water is also ideal for cooking and baking. Distilled water can absorb slightly more flour than tap water, making the texture of the batter smoother when baked, although not by a lot. Furthermore, distilled water won’t cause discoloration in vegetables when you use it for boiling since its boiling point is lower than standard tap water. This can also save you time and energy.

Baby formula

Filtered or purified water is best for babies since they are more susceptible to harmful contaminants. When using distilled water for baby formula, you may not need to boil it before mixing. Although, distilled water also lacks minerals commonly found in water. It’s wiser to ask for your doctor’s advice on what’s best for your baby.


If you notice stains on your garments or lscale in your iron, then it’s likely because you’re using hard water which contains minerals like calcium that can cause limescale. Since distilled water is mineral-free, it can prevent stains and scaling and extend the life of your appliance. However, you should first check in the manual if your iron can be used with distilled water.

Fish Tank

Distilled water can be good for topping off an aquarium that’s losing water to evaporation, but you shouldn’t use pure distilled water for water changes. It is used only to reduce water hardness before a water change, but due to its lack of minerals, it can be harmful to aquatic life. Minerals are essential to stabilize pH levels of the water.


If you have a humidifier at home, we recommend you use distilled or demineralized water. Hard water has high contents of minerals which leave deposits on the humidifier filter and tank. This can cause white dust buildup on the humidifier and its surroundings, and even promote bacteria growth.

Washing your hair and skin

Hard water contains chemicals and minerals that can be bad for your skin and hair. Common water minerals like calcium and magnesium leave deposits on your skin and hair, drying them out. Since distilled water contains none of these minerals, it can contribute to softer and smoother hair and skin.

How Distilled Water Compares to Other Types of Water

Distilled Water Vs. Filtered Water

Filtered water is simply water that has gone through filtration media to remove contaminants. Water filters trap impurities in their pores with varying micron sizes of the barrier. Depending on the filter media, filtered water will be free from larger contaminants such as sediment, dust and bacteria, but may still contain smaller ones such as viruses and dissolved chemicals. In comparison, distilled water leaves all contaminants behind. 

Distilled Water Vs. Purified Water

Purified water contains less than 10 PPM contaminants. This type of water is usually produced by a multi-stage filtration process, like reverse osmosis, ion exchange, and others. These filtration processes can remove up to 99.99% of contaminants, producing pure water. Distilled water contains about 1 PPM of contaminants. While not all purified water is distilled, distilled water can be considered a type of purified water. The main difference between the two isn’t the contaminant level but the mineral content. Purified water typically contains more minerals, but these are usually added after the filtration process, which can also be done after distillation.

Distilled Water Vs. Spring Water

Spring water comes from an uncontaminated underground source where it rises to the surface. It’s rich in minerals, has a better and fresher taste, provides oxygen to the body, and aids in good digestion. Spring water passes through natural filters to remove debris and kill bacteria, but most minerals such as calcium and magnesium are left in the water. On the other hand, distillation removes all contaminants and minerals, resulting in a flat and flavorless taste.

Benefits of Using a Water Distiller

Purest water option

Distillation is considered the purest type of water treatment filtration. Distilled water contains almost no contaminants, minerals, or other impurities, which makes it suitable for use in food processing, medical and industrial industries.

Saves money

You can find many benefits from using a water distiller at home. For one, it provides a cheaper alternative to bottled water. After your initial purchase of a water distiller, and the eventual filter replacements, you’ll be able to access distilled water at home whenever you want it. This means you’ll ultimately save money instead of spending on bottled water.

Convenient for storing

Water distillers don’t take up a large amount of space. They aren’t much bigger than a kettle or coffee pot, and you can store your water distiller on the countertop or any location that suits you. You can choose from different styles and colors that will match your kitchen.

Bacteria and virus free water

Although municipal water treatment processes should remove harmful bacteria and virus pathogens from your water supply, the water may pick up these contaminants on its way to and through your plumbing. To ensure your drinking water is completely free of disease-causing viruses and bacteria, the best solution is to distill it. When water evaporates into steam, it leaves these contaminants behind.

Good for detoxification

Toxins, minerals and other harmful chemicals can build up inside your body over time, and distilled water can help your body clean itself by detoxification, flushing out these toxins from your body. 

Fresh source of water

While distilled water is readily available in bottles in convenience stores, the water inside has been sitting in there for how many months before you drink it. With a water distiller at home, you can produce ready to drink distilled water that you can pour straight into your glass right from your kitchen counter. This also helps prevent your water from picking up contaminants from plastic bottles.

Eco-friendly alternative

If you usually buy bottled distilled water at the store, switching to a water distiller at home will also help you minimize your plastic waste and contribute to a cleaner environment. When you distill water at home, you can simply pour ready-to-drink pure straight into a glass instead of adding to plastic waste.

Clarifying Common Myths About Drinking Distilled Water

Distilled water will leach minerals from your body.

The truth is distilled water does absorb a number of minerals from your body since it’s completely mineral-free. However, this amount isn’t enough to cause any concern. Most of your mineral intake comes from food and not water, so even if you drink eight cups of hard water daily, the minerals you get from this water will only amount to about 15% of your required mineral intake. 

Cooking with distilled water will remove minerals from the food.

Cooking food with any type of water will lower the nutrient value, whether you use distilled water or not (that’s why steaming is preferred by many). In fact, your food will be less contaminated if you cook it in distilled water. It’s also great for washing fruits, vegetables, and other foods.

Drinking distilled water will weaken your teeth.

This is also untrue. The main issue with distilled water is that all of the minerals, including fluoride, have been removed. It won’t harm your teeth or drain fluoride from them, and most toothpaste already contains enough fluoride to keep your teeth healthy. 

Distilled water tastes flat.

Distilled water is completely contaminant and mineral free, therefore it will have a flat taste. Some people are also so used to the taste of chlorinated water that drinking purified water may feel different. You can always add minerals and salts to your drinking water to improve its taste.

Distillation doesn’t remove VOCs

Distillation does not remove these compounds because they have a lower boiling temperature than water, thus they will also vaporize during the distillation process. This is why some water distillers also use a carbon filter for this exact reason. After the water is distilled, the VOCs will be trapped by the carbon filter.

Distillation is expensive

This is not true. A lot of high quality water distillers come at around $200. While distillation actively uses electricity to heat the water, the amount of electricity used is hardly noticeable in your monthly bills. A gallon of water will be worth only 30 to 40 cents of electricity, way cheaper than a standard bottle of water.

What to Consider When Choosing a Water Distiller

Size of distillation chamber

The water distiller’s boiling chamber is where you add water before the distillation process. Depending on the size of the unit, a boiling chamber may be larger or smaller. Most standard home water distillers can hold at least one gallon or four liters. A smaller boiling chamber means you’ll need to add water for distillation more frequently. Conversely, larger boiling chambers will take up more space on your counter or table. 

Distillation speed

Some water distillers can produce water at a faster speed. In general, the distillation process is fairly slow. Most distillers produce around three to four liters (or up to 1.1 gallons) of filtered water in four to five hours, but some newer models are designed to distill water quicker than a standard unit. It’s recommended for an adult person to drink a minimum of two liters of water a day, so one fill of your water distiller should be enough to cover more than a day’s worth if you live alone. 


The type of material used to make your water distiller is also important to consider. While distillation produces contaminant-free water, the material of the distiller could leach some chemicals into the water when heated. Stainless steel and glass are typically preferred as they do not affect the water content in any part of the distillation process. Make sure that they are labeled as food-grade materials, which ensures that they are up to standards. Furthermore, stainless steel and glass are easier to clean.

On the other hand, plastic is cheaper but generally less preferred. Distillation involves extreme temperatures, so contact of water with plastic materials can compromise the quality and taste. If you do opt for a plastic water distiller, make sure to look for a BPA-free unit. Plastics made with BPA (Bisphenol A) will leach chemicals into the distilled water.

The material usually won’t affect the distiller’s performance, but some may prefer one over the other to match the rest of your kitchen appliances and style. Most manufacturers offer water distillers in different designs and colors you can choose from.

Contaminants removed

While all distilled water contains insignificant amounts of impurities, there might still remain some contaminants that haven’t been filtered out. Depending on the filter used in your water distiller, some contaminants may have managed to stay in the water after the distillation process. A lot of water distillers use activated carbon filters, which can trap contaminants that can evaporate and condense with water, such as VOCs. These contaminants are present in most standard sources of tap water and may affect water taste and quality.

Installation and maintenance

Most water distillers require little to no installation and maintenance. When you buy the unit, it usually comes pre-assembled, so all you’ll need to do is plug it into a power outlet and switch it on. However, instructions may vary from model to model, so always check your user manual for specific guidelines for your water distiller. If your distillation unit contains an activated carbon filter, you may need to flush this filter under running water before you use it to remove any carbon sediment. Some manufacturers might also advise you not to drink the water produced on your first few uses as it may have a plastic or metal taste and smell.

Use and Maintenance of a Water Distiller

Most home water distillers are straightforward to use. You just need to fill the chamber, plug the unit, turn it on and wait. Once all the water is distilled, the unit will turn off automatically. Most of the maintenance you’re required to do is to clean the lid and boiling chamber after a few uses.

When the water evaporates, some contaminants remain behind in the steam chamber. These contaminants will build over time, affecting the faucet and the boiling chamber eventually. To avoid the buildup, you will have to clean your water distiller regularly. 

If you have a removable lid, remove and soak it in a sink full of water. Mix the water with vinegar or citric acid before soaking the lid. If the lid cannot be removed, then clean the lid using the solution with a clean cloth or a scrub brush. Pour the cleaner into warm water when cleaning, or use white vinegar or baking soda with water. Use a non-metal scouring pad after soaking for 20 minutes.

For water distiller units that contain carbon filters, follow your manufacturer’s instructions on filter replacements. Most units will come with a pack of filters and cleaning powder.


Is it cheaper to buy or make distilled water?

It’s cheaper to make distilled water from home with a countertop machine than to buy bottled distilled water. Making a gallon of distilled water will cost around 40 cents in electricity while one 16.9 ounce bottled water costs at least a dollar.

Is boiled water the same as distilled water?

No, they aren’t the same. Boiled water is simply water that has had the temperature increased until it reaches its boiling point, while some contaminants may still remain. Distilled water is also boiled at some point, but in the end all impurities have been removed.

Is rainwater distilled water?

The water cycle is a large-scale distillation process that takes place on the earth’s surface and its result is rain. Thus, rainwater is pure, distilled water resulting from a natural process of evaporation and condensation. However, when rainwater falls from the sky, substances from the air and land may contaminate it, which can affect its quality.

Can seawater be distilled?

It is generally not recommended to use a regular distiller for seawater. Seawater contains other ingredients besides salt. During the distillation process, it produces components that will corrode the product and reduce its life. In addition, the resulting distilled water will still taste salty and bitter, which is not suitable for human consumption.


A water distiller has many benefits for your health and wellness. If you want the convenience of making your own distilled water at home, then countertop water distillers are the simplest solutions. They aren’t all cheap, but they will surely save you more in the long run. Water distillers produce clean and pure water, but some people might not enjoy its taste. In this case, you may add some minerals or salts to the water to improve its taste and even make it healthier. When you consider all the factors you need, a water distiller is well worth your investment. If you’re ready to make a decision, take another look at our top picks or use our buying guide to help you choose your own water distiller.

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