5 Best Safest Bottled Water | Distillation You Can Trust

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Water that arrives at its own pH, straight from a spring, with zero adjusting needed.

Most “alkaline” water you find on a shelf has had its pH pushed up after the fact. Icelandic Glacial does not work that way. It sits at a natural pH of 8.4 as it comes out of the ground, sourced from the Ölfus Spring in Iceland — one of the world’s largest natural springs. That is the specific number that earns this bottle its slot: an honest 8.4 that the source provides, not a chemistry-set adjustment.

The taste is where this one gets its reputation. The bubbles are clean, the finish is clean, and the bottles are built with the brand’s glacier-inspired design, which is a subtle aesthetic bonus on a dinner table. They are made from high-grade rPET (recycled plastic) that is BPA-free and entirely recyclable. If you want the sparkle, the same line also comes in classic sparkling and a selection of distinct sparkling flavors, all available in 330 mL aluminum cans. The cans are worth knowing about. When you want the taste without the plastic, they are the same water in a different container.

Compared side by side with the Mountain Valley case, this one packs the bigger volume. These 330 mL six-count packs work out to 133.2 fluid ounces, against Mountain Valley’s 12 fluid ounces — the Icelandic case gives you noticeably more water per case. The honest trade is that the value story is the weak spot. Several customers find it quite expensive for what it is. No added minerals, no chloride, no fuss — just clean spring water at a natural pH. If taste and sourcing are your two buying criteria, this is the bottle that delivers on both.

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Built for the overseas trip, the backpack, and the toddler who has opinions about juice.

ABC Baby Water takes a slow path to clean. It is an 11-hour, 9-step distillation and purification process, and the payout is water free of pH additives, sodium, chlorine, fluoride, minerals, and metals. That is the label you want in front of you when you are mixing formula on a hotel room desk, hours from home, with no way to check the tap.

You can carry these 16.9 oz bottles anywhere—they slip into a diaper bag or backpack without weighing you down. The seals hold tight, so travelers who pack them for luggage and backpack trips report no leaks, even after the bottle has been rolling around since baggage claim. At home, you avoid heavy gallons because the pack comes in cases of 12 or 24. Each case has four unique labels with cute animal designs, and one owner’s toddler latched onto those labels so hard she forgot about juice entirely. That is a genuinely useful trick if you have a juice-first two-year-old on your hands.

This is also the heaviest case in the lineup — the ABC Baby Water case lands at 13.98 pounds, which is a fair bit of cardboard and water to carry up an apartment staircase. It packs the same 202.8 fluid ounces as the Bay Bay case, so the volume is identical. What differs is the water inside it. The distilled production is done in a state-inspected bottling facility that meets full FDA guidelines, quality-tested by a third-party accredited lab, and made and bottled in the USA. Some blend of reviews note the taste runs bitter for their household — a formula-mixing parent is going to taste-test it anyway, so this is worth knowing going in. If you are planning an overseas trip, this is one to load first.

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Two ingredients, one aluminum can, and a very specific kind of water inside.

improve is the odd one out — this is not water for formula or a CPAP machine, it is water for a person chasing a specific functional benefit. Each can gives you 3-5 PPM molecular hydrogen (H2, a gas that is dissolved into water), with an ORP reading of -650. The whole list of ingredients is two items: ultra-purified structured water and hydrogen gas. That is it. No flavoring, no sugar, no caffeine, no calories. The purification step itself is a 12-stage process, and the resulting water sits at a 9.5 pH alkaline.

What regulars describe is a drinking experience that is oddly easy. The recurring description is “drinking air” — no watery slosh, no warm funky taste, easy to drink fast. A non-water-drinker reportedly found the cans fresh and crisp ice cold and compared them to mountain water. Others noted a physical pick-me-up during demanding activity, and a few mentioned feeling better on soreness days. The honest caveat from those same committed drinkers is that the feel diminishes as they work through a case, and the cost keeps it in occasional-treat territory rather than daily-stock territory.

At 12.7 ounces, this case is the lightest option here, and it ships in aluminum cans rather than plastic—a real difference if microplastics are what pushed you away from standard bottled water. One buyer notes that any excess hydrogen is exhaled naturally with no buildup. The brand cites 1,600+ peer-reviewed studies on molecular hydrogen—a brand claim, not an independent verdict. If you already know what molecular hydrogen is and want it in a ready-to-drink can, this is the easiest path to it.

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The one case on this list that exists because its container is the whole argument.

If you want to avoid plastic, this case is the one to pick. Mountain Valley puts its spring water in a glass bottle—16.9 ounces, sold in a pack of 12—because the container itself is the selling point. Reviewers describe a clean, refreshing taste with no plastic aftertaste, and many say they switched from another brand as soon as they found a glass alternative that ships. That is the whole point: glass does not carry the taste of what it holds the way plastic sometimes can.

The honest trade is weight and shipping. Glass is heavier than plastic, and it can chip in transit. The Mountain Valley case has gotten the most attention of anything on this list, and the recurring complaint in the negative reviews is about packaging and fragility, not the water itself. Some cases also arrived with what buyers describe as plastic bottles rather than glass — noting that the label says glass but what showed up was not. This is not a delivery problem to ignore. If you specifically want glass, order when you can check the shipment on arrival, and inspect each bottle’s rim for chips before you pour. When the case arrives intact, the water quality is the thing people come back for.

It compares directly with the Icelandic case on volume, and the math runs the other way — this one has a 12 fluid-ounce unit listing against Icelandic Glacial’s 133.2 fluid ounces, so per-case you are getting less water. You are paying, in effect, for the glass. If owning a genuinely glass-bottled spring water is the priority, this is the case in this lineup. If volume per case is the priority, the Icelandic case wins the comparison. What this case does better than anything else here is solve a specific problem — the microplastic concern — with a physical solution rather than a marketing claim.