Alkaline Vs Copper Water Purifier: 10 Key Differences

Two popular options in the healthy home water system are alkaline water filters and Copper water filter. The main difference between alkaline and copper water purifiers is the mechanism they use to enhance water quality. Alkaline water purifiers raise the pH level 7 to 8 of water, making it more alkaline, while copper water purifiers infuse water with copper ions, which have antimicrobial properties. Along with there are many key differences are present. Today, in this post, I’m going to show you some of the main differences between each of these methods.

How Alkaline Water Purifiers Work

Alkaline water purifiers work by increasing the pH level around 7-8 of water through a process called electrolysis. This process involves passing water through ion exchange plates that separate water molecules into acidic and alkaline components. The alkaline portion is then dispensed for consumption.

Benefits of Alkaline Water

Alkaline water is believed to provide various health benefits, including:

  • Neutralizing excess acidity in the body
  • Improving hydration
  • Enhancing the immune system
  • Supporting weight loss and detoxification

How Copper Water Purifiers Work

Copper water purifiers use the natural properties of copper to purify water. Water is stored in a copper vessel, and the copper ions dissolve into the water, killing harmful microbes and providing essential minerals.

Benefits of Copper Water

Copper-infused water is known for its numerous health benefits, such as:

  • Aiding digestion
  • Boosting immunity
  • Supporting healthy skin
  • Promoting heart health

Comparison of Alkaline and Copper Water Purifiers

In case you’re in a hurry! Check the below Alkaline Vs Copper water purifier comparison table and infograph.

FactorsAlkaline Water PurifierCopper Water Purifier
Water pHIncreases pH to 8-9.5 (alkaline)No significant change in pH
Contaminant RemovalEffective against some impuritiesEffective against some microorganisms
Health BenefitsNeutralizes acidity, antioxidant properties, improved hydrationImproved digestion, immune system support, better skin health
Environmental ImpactLow; uses electricity for ionizationLow; uses natural properties of copper
MaintenanceRequires regular filter replacement and maintenanceRequires regular cleaning to prevent tarnish
CostCan be expensive, with high-end models costing thousands of dollarsGenerally more affordable
Effectiveness against contaminantsLimited; may not remove all contaminantsLimited; may not remove all contaminants
Overconsumption risksRisk of alkalosis with excessive intakeRisk of copper toxicity with excessive intake
Alkaline vs Copper water purifier infographics

1. Water pH

Alkaline water purifiers increase the pH of water around 7-8, making it more alkaline. Copper water purifiers, on the other hand, do not significantly alter the pH level of water.

2. Antioxidant Properties

Alkaline water has antioxidant properties, which help neutralize free radicals in the body. Copper water does not possess antioxidant properties but provides essential minerals that contribute to overall health.

3. Mineral Content

Alkaline water purifiers do not increase the mineral content of water. Copper water purifiers, however, infuse water with copper ions, which provide essential minerals.

4. Taste

Alkaline water has a slightly sweet taste, while copper-infused water has a mildly metallic taste that some people may find unpalatable.

5. Microbial Growth Prevention

Copper water purifiers are effective in preventing microbial growth, thanks to copper’s antimicrobial properties. Alkaline water purifiers do not inherently prevent microbial growth, although some models may include additional filtration systems that help remove contaminants.

6. Health Benefits

Alkaline water purifiers claim to provide a range of health benefits, such as neutralizing acidity, improving hydration, and enhancing the immune system. Copper water purifiers also offer various health benefits, including aiding digestion, boosting immunity, and supporting heart health. The specific benefits experienced may vary depending on individual needs and preferences.

7. Annual Maintenance Cost

Alkaline water purifiers typically require more maintenance than copper water purifiers, as the ion exchange plates may need regular cleaning and replacement. Copper water purifiers need occasional cleaning and polishing to maintain their effectiveness and aesthetic appeal.

Check the below Alkaline vs Copper water purifier average annual maintenance cost comparison table

FeatureAlkaline Water PurifierCopper Water Purifier
Pre-filter₹500 – ₹1,000₹500 – ₹1,000
Sediment filter₹300 – ₹800₹300 – ₹800
Carbon filter₹500 – ₹1,200₹500 – ₹1,200
RO membrane₹500 – ₹2,800₹500 – ₹2,800
Alkaline cartridge/Copper₹1,500 – ₹3,000 (Alkaline cartridge)₹2,000 – ₹4,000 (Copper cartridge)
Post-carbon filter₹300 – ₹800₹300 – ₹800
Total Annual Filter₹2,500 – ₹6,500₹3,500 – ₹6,500

8. Cost

In India 2023, Alkaline water purifiers tend to be more expensive (₹6,500 – ₹28,000) than copper water purifiers (₹ 4,999 – ₹24,000) due to the advanced technology used like RO + UV + UF + MTDS in the purification process. Copper water purifiers are generally more affordable, making them a cost-effective option for many households.

9. Environmental Impact

Alkaline water purifiers require electricity to function, contributing to energy consumption and carbon emissions. Copper water purifiers use a passive purification process that does not require electricity, making them a more environmentally friendly option.

10. Popularity and Demand

Alkaline water purifiers have gained popularity in 10 years ago in India, due to their claimed health benefits and advanced technology. Copper water purifiers have been used for centuries and remain popular for their natural purification process and traditional appeal.

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Both alkaline and copper water purifiers have their own unique benefits and drawbacks. Alkaline water purifiers offer a higher pH and antioxidant properties, while copper water purifiers provide essential minerals and antimicrobial benefits. When choosing between these two purification systems, it’s essential to consider factors such as taste preferences, maintenance requirements, cost, and environmental impact.


Is alkaline water or copper water better for me?

The answer depends on your personal needs and preferences. Alkaline water may be more suitable if you’re seeking higher pH levels and antioxidant properties, while copper water may be a better choice if you prefer natural mineral content and antimicrobial benefits.

Can I use both alkaline and copper water purifiers together?

Yes, you can use both purification systems together to obtain the benefits of both alkaline and copper-infused water. However, this may require additional investment and maintenance.

Do alkaline water purifiers remove impurities like heavy metals and bacteria?

Alkaline water purifiers primarily focus on altering the pH level of water. They do not inherently remove heavy metals or bacteria, although some models may include additional filtration systems to address these concerns.

How often do I need to clean and maintain my copper water purifier?

The frequency of cleaning and maintenance depends on usage and water quality. Generally, you should clean and polish the copper vessel every few weeks to maintain its effectiveness and appearance.

Also read,

  1. Best Water Purifier with TDS Controller in India
  2. Best Water Purifier With Stainless Steel Tank in India

BrandScroll Team
BrandScroll Team

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