Water Brand pH Levels: 20 Waters Compared 💧

Bottled water is stacked on illuminated shelves

The Water brand pH levels comparison comes down to this: popular bottled waters range from mildly acidic to strongly alkaline, but a higher pH doesn’t automatically mean healthier water. For everyday drinking, choose water you enjoy and can access safely; treat pH as one detail alongside source, minerals, and taste.

Our comparison spans reported readings from about pH 5.5 to 10. One revealing twist: published measurements can differ for the same brand, so a pH number is best read as an estimate tied to a particular product, batch, and testing method—not a permanent brand-wide score.

Key Takeaways

  • Reported pH ranges widely: The 20 brands compared go from approximately pH 5.5 to 10.
  • Measurements can conflict: Testing methods, sources, markets, and batches may produce different readings.
  • pH is not a health ranking: Alkaline water has no established everyday hydration advantage for most people.
  • Taste and water type matter too: Minerals, treatment, and carbonation can influence flavor and pH.
  • Choose by preference and reliable product information: Don’t use pH alone to judge water safety or quality.
  • Explore the categories: Bottled Water | Natural Spring Water | Mineral Water | Enhanced Water | Filtered Water

Table of Contents

⚡️ Quick Tips and Facts

  • pH 7 is neutral; below 7 is acidic and above 7 is alkaline. The scale is logarithmic, so each whole-number step represents a tenfold change in hydrogen-ion concentration. USGS explains the pH scale.
  • A pH number is not a complete measure of water quality, taste, or healthfulness. Mineral content, alkalinity (buffering capacity), carbonation, source, and treatment all matter.
  • In our comparison, published or reported brand figures range from about pH 5.5 to 10. Treat these as approximate: products, sources, batches, and testing methods differ.
  • Carbonation generally lowers water’s pH. A study of 105 bottled-water brands sold in Portugal reported mean pH 6.81 for still waters and 5.46 for carbonated waters. Read the study.
  • For routine hydration, taste, safety, and whether you’ll actually drink enough water matter more than chasing a high pH. The CDC’s hydration guidance focuses on choosing water as a healthy drink, not on buying a particular pH.
  • A bottle labeled “alkaline” is not automatically healthier, and an acidic pH reading does not, by itself, prove that water is unsafe.
  • Our early teaser: some brand lists disagree even about the same water. The most useful comparison is not a league table of “winners”—it’s knowing which reading was measured, where it came from, and what pH can and can’t tell you.

The wider Water Brands™ water-brand guide puts pH in context alongside source, processing, taste, and water type. If you’re browsing bottled water, keep those factors in view.

💧 What Water pH Means: Acidic, Neutral, and Alkaline

What the pH scale tells you

pH describes how acidic or alkaline a water sample is. On the familiar 0–14 scale, 7 is neutral, while lower readings are acidic and higher ones alkaline. In practice, drinking waters occupy a much narrower range than the entire scale.

pH reading General description What it tells you—and what it doesn’t
Below 7 Acidic Indicates a lower pH; does not establish contamination or health risk by itself
7 Neutral A reference point, not a guarantee of ideal taste or quality
Above 7 Alkaline Indicates a higher pH; does not prove special health benefits

A one-unit pH change is substantial because the scale is logarithmic. But pH is not the same thing as alkalinity. Alkalinity measures water’s ability to resist changes in pH; two waters can have a similar pH but behave differently when acids are introduced. The USGS overview of pH and water explains the distinction between pH and other water properties.

Why bottled water pH can vary

A brand’s pH may reflect:

  • Source geology: Water moving through rock can pick up minerals such as calcium and bicarbonate.
  • Treatment: Reverse osmosis, distillation, filtration, and remineralization can change mineral composition and measured pH.
  • Carbon dioxide: Dissolved CO₂ forms carbonic acid, which generally lowers pH. Carbonated water is therefore often more acidic than its still counterpart.
  • Storage and handling: Exposure to air, temperature, and time can affect measurements, particularly for low-mineral water.
  • Testing technique: Meter calibration, sample temperature, and the measuring device can all influence a reading.

That’s why a pH listed on a brand page, an independently measured value, and a number from a consumer video may not match exactly. A mismatch is a cue to check the method—not proof that one source is dishonest.

📜 Bottled Water pH Background: How Brands Set Their Profiles

two clear and green glass bottles

Bottled waters generally fall into a few broad groups. Natural spring water and mineral water can retain minerals picked up underground, while purified water may be treated and then have minerals added for taste. Enhanced water is another broad category that can include added electrolytes or other ingredients.

The category alone doesn’t predict a precise pH. A spring water’s mineral profile depends on its source; a purified water’s final profile depends on treatment and any added minerals. Labels and brand materials can help identify source and processing, but a pH number should be understood as a reported value, not a permanent fingerprint for every bottle.

🔬 How We Compare Water Brand pH Levels


Video: Bottled water pH level test.








We compare reported figures from a brand-by-brand article and consumer testing, then check them against published research and the brands’ source or product information where available. The brand list below is a useful reference—not a controlled, head-to-head laboratory test of every bottle on the shelf today.

A Ten Spring Water comparison says readings were manually recorded with the same electronic device and cautions that the results “are not necessarily conclusive.” That caveat matters. A consistent testing approach can make one test series more comparable internally, but it cannot eliminate uncertainty about calibration, sample handling, or batch differences.

Label claims, lab tests, and measurement limits

The strongest comparison uses a calibrated pH meter, controlled temperature, repeat measurements, and clear reporting of the sample and method. A peer-reviewed study of 105 bottled waters sold in Portugal took five measurements per brand at 25°C with a calibrated meter reporting 0.01-pH resolution. Its findings show how wide the range can be—and why country, product type, and carbonation need to be specified. See the full study.

For a second perspective, a consumer video linked here compared bottled waters using TDS readings, test strips, and other measurements. Its tester reported pH values around 6.6–7 for several purified waters, approximately 7.3 for some spring waters, and about 7.0–7.1 for Fiji. Those results don’t match every brand figure below. The video is useful as a demonstration of consumer testing, but test strips and household meters should not be treated as equivalent to a controlled laboratory study.

Why pH readings may differ between bottles

Consider the Portugal study: it reported mean pH values of 7.29 for Evian, 7.78 for Fiji, and 6.77 for Volvic in its tested samples. Those results differ from some commonly quoted brand figures. That is not necessarily a contradiction: a brand’s source, country of sale, product formulation, batch, and testing conditions may vary.

Comparison issue Why it matters What to trust most
Different source or market The same brand may bottle from multiple sources or sell market-specific products Product-specific label and current brand information
Different method Test strips, consumer meters, and calibrated lab instruments have different precision Repeated, calibrated measurements with methods reported
Different sample conditions Temperature, CO₂ exposure, and storage can affect readings Tests performed under controlled, documented conditions
Different property pH is not TDS, mineral content, or alkalinity Treat each measurement as its own data point

Bottom line: use brand figures to shortlist waters, not to declare an immutable pH for every bottle.


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The figures below are approximate values reported in the comparison source summarized here. They are not a guarantee of the pH in every bottle or market. Where sources disagree, we flag the conflict rather than pretending the decimals have settled it.

Brand Reported pH Broad type Quick reading
TEN Alkaline Spring Water 10 Alkaline spring water Highest figure in this list
Aquafina 6.0 Purified water Mildly acidic figure
Acqua Panna 8.0 Natural spring water Alkaline figure; study result differed
Arrowhead 6.8 Spring water Near neutral
CORE Hydration 7.4 Purified, enhanced water Slightly alkaline
Crystal Geyser 6.9 Spring water Near neutral
Dasani 5.6 Purified water Mildly acidic figure
Deer Park 5.5* Spring water Conflicting report; see note
ETERNAL 7.8–8.2 Spring water Moderately alkaline range
Evian 7.5* Natural mineral water Other measurements differ
FIJI Water 7.6* Artesian water Other measurements differ
JUST Water 8.0 Spring water Moderately alkaline
LIFEWTR 6.8–7.2* Purified, enhanced water Reported ranges conflict
Nestlé Pure Life 7.3 Purified water Near neutral to mildly alkaline
Penta 5.5 Processed purified water Mildly acidic figure
Poland Spring 7.2 Spring water Near neutral to mildly alkaline
smartwater 7.0* Purified, electrolyte-added water Listed and test readings differ
Volvic 7.5* Natural mineral water Study result differed
VOSS 7.6 Bottled water Reported figure; confirm product
Zephyrhills 7.7 Spring water Moderately alkaline figure

* Conflicting measurements: The source lists Evian at 7.5 but reports a test around 7.4; Fiji at 7.6 but a test around 7.8; smartwater at 7.0 but a test around 6.7; LIFEWTR is given as 6.8–7.2 in its heading and 6.4–7.4 in its description. Deer Park is listed as 5.5 in one heading, while the accompanying description says approximately 7.5. We would not rely on the Deer Park value without a current, product-specific measurement.

1. TEN Alkaline Spring Water: pH 10

The comparison source identifies TEN as spring-sourced alkaline water and reports pH 10, the highest figure in this list. The brand describes its source as springs in the Great Appalachian Valley and offers several package formats. Confirm current sourcing and product details directly with TEN Spring Water.

What stands out: A high reported pH and spring-water positioning make it an option for shoppers specifically seeking alkaline water. But pH 10 is not a health score. A higher number does not establish better hydration or a medical benefit.

Our take: Choose it because you enjoy the taste or want that type of product—not because you expect its pH to change your body’s overall pH.

2. Aquafina: pH 6.0

Aquafina is purified water made from a public water supply and processed through a multi-step purification system, according to the brand. The comparison source gives an approximate pH of 6.0, while consumer testing summarized in the video found purified waters clustered closer to 6.6–7.

What stands out: A familiar purified-water profile and broad availability. The specific pH should be treated as an estimate, especially because the video’s test method and the brand-by-brand source are not directly comparable.

3. Acqua Panna: pH 8.0

Acqua Panna is a spring water from Tuscany, Italy, according to its official site. The comparison lists pH 8.0, but the Portugal study measured a mean of 8.67 for samples sold there. That gap illustrates why a single number may not represent every market or testing context.

What stands out: A reported alkaline pH and a mineral profile shaped by its source. If you’re comparing natural waters, look beyond pH and consider the broader mineral water category.

4. Arrowhead Spring Water: pH 6.8

Arrowhead is described as spring water sourced from multiple springs in the western United States. The comparison gives it a pH of 6.8, just below neutral. Multiple sources can mean that natural characteristics vary; check the bottle and brand information for the product sold in your area.

What stands out: A near-neutral reported reading. Don’t read too much into the difference between 6.8 and 7.0 without considering the measurement method and other water properties.

5. CORE Hydration: pH 7.4

CORE Hydration is purified water with added electrolytes and minerals, and the comparison reports pH 7.4. See CORE’s product information for current ingredients and product details.

What stands out: A slightly alkaline figure and a formulation designed around taste and added minerals. It is enhanced water, not proof that more alkaline water hydrates better. For everyday hydration, palatability and access to safe water remain more useful considerations.

6. Crystal Geyser: pH 6.9

Crystal Geyser’s reported pH is 6.9, close to neutral. The brand describes its products as spring water and provides source and product information through Crystal Geyser Water Company. The consumer video summarized earlier reported a higher value of roughly 7.3 for spring waters it tested, another reminder that results are method-dependent.

What stands out: A near-neutral reported pH, with source and mineral characteristics that may matter more to taste than a fraction of a pH unit.

7. Dasani: pH 5.6

Dasani is purified water with minerals added for taste, according to the brand. The comparison reports an approximate pH of 5.6. A consumer video found several purified waters, including Dasani, around 6.6–7.

What stands out: Mineral additions can shape flavor, but they do not make the product’s pH identical across all tests. A mildly acidic reading alone does not mean the water is unsafe.

8. Deer Park: pH 5.5

The source material is inconsistent: the brand-list heading says pH 5.5, while its description reports a test near 7.5. Deer Park is presented as spring water, but this conflict makes a confident single-number rating inappropriate.

What stands out: Treat both figures cautiously and check current product and source information from the brand. We would not use this entry to rank Deer Park as either notably acidic or alkaline without a reliable, product-specific test.

9. ETERNAL: pH 7.8–8.2

ETERNAL is described as spring water with a reported pH range of 7.8–8.2. A range is more realistic than implying every bottle always has precisely the same reading. Check ETERNAL’s official site for current sourcing and product claims.

What stands out: A moderately alkaline reported range. The source comparison suggests natural spring conditions can contribute to variation, so the range itself is useful context.

10. Evian: pH 7.5

Evian is natural mineral water from the French Alps, according to the brand. The comparison lists pH 7.5, while its reported test was about 7.4. The Portugal study measured a mean of 7.29.

What stands out: These values consistently point toward near-neutral to mildly alkaline water, but not one universal reading. Evian’s minerals and taste profile may be more relevant to your preference than the small pH differences.

11. FIJI Water: pH 7.6

FIJI Water is sourced from an artesian aquifer in Fiji, according to the brand. The comparison lists pH 7.6 and reports a test of 7.8; the Portugal study found 7.78, while the consumer video found around 7.0–7.1.

What stands out: A strong example of why method and market matter. The different readings do not justify declaring one definitive pH for every bottle. Check the label and product details, and choose based on source, taste, and packaging preferences as well.

12. JUST Water: pH 8.0

JUST Water is described as spring water sourced in Glens Falls, New York, with a reported pH of 8.0. Consult JUST Water’s official site for current product and sourcing details.

What stands out: A moderately alkaline figure and a spring-water identity. Remember that source classification does not guarantee a fixed pH, and an alkaline reading is not a clinical benefit claim.

13. LIFEWTR: pH 6.8–7.2

LIFEWTR is purified water with added minerals for taste. The comparison gives a heading range of 6.8–7.2, but elsewhere reports 6.4–7.4. That wide disagreement means we’d describe it as near neutral in this source—not assign a precise number.

What stands out: The product’s added minerals and taste profile may be more useful when choosing than the pH estimate. For current ingredients and product details, consult PepsiCo’s product information.

14. Nestlé Pure Life: pH 7.3

Nestlé Pure Life is purified water; the comparison reports pH 7.3. The consumer video’s test found the product among several purified waters clustered around 6.6–7. See the product’s current details through Nestlé Pure Life.

What stands out: The reported pH sits near neutral, but the difference between 7.0 and 7.3 should not be treated as a meaningful health ranking. If you like the taste and it meets your needs, that matters more.

15. Penta: pH 5.5

The comparison lists Penta at pH 5.5 and describes it as processed purified water. That is an approximate figure from the source, not a lab result for every current bottle.

What stands out: A mildly acidic reading does not alone establish a safety issue. If you have concerns about dental erosion, remember that pH is only one factor; mineral content, exposure frequency, saliva, and buffering also matter. The Portugal study discusses those limits.

16. Poland Spring: pH 7.2

Poland Spring is presented as natural spring water, with a reported pH of 7.2. The comparison describes screening while retaining natural minerals; check the brand’s current product information for source and product specifics.

What stands out: A near-neutral to mildly alkaline reading. As with other spring waters, source and mineral composition may contribute to taste and can vary across products.

17. smartwater: pH 7.0

smartwater is vapor-distilled water with added electrolytes for taste, according to the brand. The comparison lists pH 7.0 but reports a test around 6.7. The consumer video also places some purified waters in a narrow near-neutral range.

What stands out: Its reported pH is close to neutral, with added electrolytes distinguishing its profile. Electrolytes and pH are different measurements; one does not tell you the other.

18. Volvic: pH 7.5

Volvic is a natural mineral water bottled at Clairvic Spring in France, according to the brand. The comparison reports pH 7.5, while the Portugal study measured a mean of 6.77.

What stands out: The difference is a clear reason to check the specific market and sample rather than treating a brand-wide figure as universal. Its source and mineral profile may better explain its taste than the headline pH.

19. VOSS: pH 7.6

The comparison gives VOSS a pH of 7.6 and notes low total dissolved solids in its discussion. Product source and details can vary, so check VOSS’s official information for the bottle you’re considering.

What stands out: Don’t confuse TDS with pH. TDS estimates dissolved substances; pH describes acidity or alkalinity. A low-TDS water can still have a measurable pH, and neither figure alone establishes overall quality.

20. Zephyrhills: pH 7.7

Zephyrhills is described as Florida spring water, with a reported pH of 7.7. The consumer video, however, placed Zephyrhills among purified waters around 6.6–7. That discrepancy makes checking the specific product and source especially important. Current product details are available from Zephyrhills.

What stands out: The comparison’s reported figure is moderately alkaline, but a different product, source, or test can yield a different result. Don’t assume every Zephyrhills bottle has the same pH.

🧭 How to Choose Bottled Water by pH, Taste, and Mineral Content


Video: Which Bottled Water Is The Best For Your Health? (TESTING EVERY WATER BRAND).








Best choices for neutral-tasting water

There’s no universally best-tasting pH. Some people prefer low-mineral purified water; others enjoy the mineral character of spring or mineral waters. If you’re choosing for everyday use:

  • Start with taste: Choose water you’ll drink consistently.
  • Read the product label: Check source, treatment, and added ingredients.
  • Compare pH only when it answers your question: For example, when you’re specifically comparing still and carbonated products.
  • Don’t confuse “neutral pH” with neutral flavor: Mineral salts and dissolved gases can affect taste too.

Our tasting-panel rule of thumb: pour two still waters at the same temperature into clean glasses, taste them blind, and only then compare their labels. It keeps brand familiarity from doing all the talking.

Alkaline water versus regular bottled water

Alkaline waters have a pH above 7; ordinary bottled waters may be acidic, neutral, or alkaline. That label describes a chemical property—not a proven health advantage. The Mayo Clinic’s overview of alkaline water says more research is needed to support claims of health benefits for most people.

What you’re comparing Alkaline water Regular bottled water
Typical pH description Above 7 Can fall below, at, or above 7
Taste Depends on minerals and formulation Depends on source, treatment, and minerals
Proven hydration advantage Not established for everyday consumers Water supports hydration without needing a high pH
Best reason to choose You enjoy its taste or prefer its formulation You enjoy its taste, source, convenience, or composition

Spring, purified, and mineral water compared

Type How it is generally described What may influence pH and taste
Spring water Colected from a spring source Local geology and naturally present minerals
Purified water Treated to meet a defined purity process Treatment method and minerals added afterward
Mineral water Characterized by its mineral composition under applicable rules Mineral ions, source, and carbonation
Enhanced water May include added electrolytes or other ingredients Added ingredients and formulation

These are broad categories; check the bottle and local regulatory definitions. Explore spring water, mineral water, filtered water, and enhanced water for related comparisons.

🩺 Water pH and Health: What the Evidence Says


Video: I Tested The PH of EVERY BOTTLED WATER.








Can alkaline water change your body’s pH?

Your body regulates blood pH within a narrow range through normal physiological systems. Drinking alkaline water does not simply make your whole body alkaline. The National Cancer Institute’s explanation of cancer misinformation notes that diet does not meaningfully alter blood pH in the way popular alkaline-diet claims often suggest.

Water can interact with the stomach and digestive system, but that does not establish a lasting whole-body pH change or a broad health benefit. For persistent symptoms or a medical condition, get advice from a qualified healthcare professional rather than using water pH as treatment.

Acidic water, dental health, and hydration

A lower pH may be relevant to dental erosion, but pH alone cannot predict tooth damage. The Portugal bottled-water study notes a commonly discussed enamel critical-pH range around 5.2–5.5, while also emphasizing factors such as mineral content, buffering capacity, and oral conditions. It states that pH is “the dominant factor in erosion,” but “it is not unique.” Read the research and its limitations.

For practical dental care:

  • Don’t sip acidic or carbonated drinks continuously over long periods.
  • If you have dry mouth or frequent exposure to acidic drinks, ask your dentist about your personal risk.
  • Follow established dental advice; pH alone is not a diagnosis.

For hydration, ordinary safe drinking water is suitable for most people. The CDC recommends water as a healthy drink choice without requiring a particular bottled-water pH.

Who should ask a healthcare professional?

Most people do not need to choose water based on pH. Ask a healthcare professional or dentist if you have a medical condition affecting fluid or mineral intake, a prescribed fluid restriction, significant reflux or dry mouth, or ongoing dental-erosion concerns. Don’t use high-pH water as a substitute for prescribed care.

🏠 How to Test Bottled Water pH at Home


Video: I Tested the PH of Every Bottle of Water.








pH strips versus digital meters

Tool Strength Limitation
pH strips Simple, inexpensive, quick Color matching is subjective; resolution is limited
Digital pH meter More precise when calibrated and maintained Needs calibration, clean storage, and proper technique
Laboratory measurement Strongest option for controlled comparisons Requires access to suitable lab testing

Consumer tools can help you compare samples at home, but they do not automatically produce laboratory-grade results. Very low-mineral water can also be challenging for some meters to read reliably.

Simple steps for a more reliable reading

  1. Check the device instructions. Use fresh strips or a meter designed for water testing.
  2. Calibrate a meter with the appropriate buffer solutions before testing.
  3. Use clean glassware. Rinse it with the sample water if the instructions permit.
  4. Keep conditions consistent. Test samples at similar temperatures and soon after opening.
  5. Follow the instrument’s contact and settling instructions. Don’t guess from a momentary flicker on the display.
  6. Repeat the measurement. Take multiple readings and record the result rather than relying one dip.
  7. Compare like with like. Test still water against still water, and note whether a sample is carbonated.
  8. Write down the brand, product, batch, date, method, and temperature. Without these details, a pH number has little context.

If your result disagrees with the label or another report, repeat the test with a calibrated meter or contact the brand. A home measurement is a clue, not a verdict.

🌎 Bottled Water Beyond pH: Minerals, Source, Packaging, and Sustainability


Video: pH of Bottled Water | Water pH Test | Know What You’re Drinking.








pH is only one line in a much bigger water story. When comparing products, consider:

  • Mineral profile: Calcium, magnesium, sodium, bicarbonate, and other minerals can affect taste and composition.
  • TDS: Total dissolved solids are not the same as pH and do not identify which substances are present.
  • Source and treatment: Spring, artesian, mineral, and purified waters are not interchangeable descriptions.
  • Carbonation and flavoring: Carbon dioxide can lower pH; flavor ingredients may further change acidity.
  • Packaging and recycling: Check local recycling guidance and the brand’s current packaging information.
  • Safety and regulation: Use official water-quality information and product labeling rather than pH as a stand-in for contaminant testing.

The FDA’s bottled-water information explains how bottled water is regulated in the United States. For a more complete comparison, browse bottled water alongside our guides to mineral water and filtered water.

💡 Quick Tips for Comparing Water Brand pH Levels


Video: Ph Balance test on 16 different waters.








  • Treat pH as one characteristic, not an overall quality grade.
  • Check whether a value is a brand claim, an independent test, or a study result.
  • Compare the same product type: still versus still, carbonated versus carbonated, and the same market when possible.
  • Expect small differences across tests. A result of 6.9 versus 7.1 is not a meaningful health ranking on its own.
  • Look for repeated measurements and a reported method before trusting a precise decimal.
  • Choose water you enjoy and can access safely. You don’t need to chase a pH of 8, 9, or 10 for ordinary hydration.
  • For dental concerns, consider more than pH: carbonation, exposure frequency, saliva, and mineral buffering matter too.
  • Ask what question the number answers. If you’re choosing for taste, taste matters. If you’re checking safety, use proper water-quality data—not pH alone.

Review Team
Review Team

The Popular Brands Review Team is a collective of seasoned professionals boasting an extensive and varied portfolio in the field of product evaluation. Composed of experts with specialties across a myriad of industries, the team’s collective experience spans across numerous decades, allowing them a unique depth and breadth of understanding when it comes to reviewing different brands and products.

Leaders in their respective fields, the team's expertise ranges from technology and electronics to fashion, luxury goods, outdoor and sports equipment, and even food and beverages. Their years of dedication and acute understanding of their sectors have given them an uncanny ability to discern the most subtle nuances of product design, functionality, and overall quality.

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