Plain seltzer has a thankless job. It must deliver a crisp, satisfying fizz without any flavor to hide behind, and a single weak pour reveals every shortcoming. Polar has been making carbonated water since 1882 in Worcester, Massachusetts, and the Original line in 12 fl oz cans is the most direct expression of that history. This is seltzer at its most honest: no sweeteners, no added flavor, no sodium, and nothing between you and the carbonation. I spent three weeks with the 18 pack, drinking it plain, over ice, and in mixed drinks, and this review records what that experience actually showed.
Before the details, the standard note. This article contains affiliate links, and if you buy through one of them the site earns a small commission at no extra cost to you. That commission never changes what I test or what I recommend.
Design and Build
The product is deliberately simple, but the can itself matters more than it might seem. Each 12 fl oz can carries the familiar Polar branding in clean blue and white, with the word Original printed plainly so there is no confusion about what you are buying. The cans are standard aluminum, which keeps them light for transport and easy to crush for recycling, and the 18 pack arrives in a sturdy cardboard tray that survived its trip to my door without a single dented can.
The aluminum body does real work beyond packaging. It chills quickly in the refrigerator, which is exactly what a seltzer drinker wants on a warm afternoon, and it holds that chill far better than a plastic bottle. The pull tab opens cleanly without the seam catching, and the rim is smooth with no sharp edges, a small detail that shows up the difference between a careful fill and a rushed one. Polar fills the cans with plain carbonated water and nothing else, so there is no sticky residue on the outside and no syrup film anywhere in the packaging.
Key Features
The defining feature of Polar Original is what it leaves out. There is no sugar, no sweetener, no flavoring, no sodium, and no calories in the entire can, which makes it a straightforward choice for anyone tracking intake or simply avoiding artificial ingredients. The nutrition panel is essentially empty, and that emptiness is the point.
The carbonation level is the second feature worth naming. Polar builds a sharp, active fizz that bites on the tongue without stinging the throat, the sort of effervescence that clears the palate and makes you reach for the next sip. It is noticeably more aggressive than lightly fizzed competitors, which is a draw for people who treat seltzer as a soda replacement rather than a still water substitute.
The 18 pack format is the practical benefit. At 12 fl oz per can you get a genuinely useful serving, larger than the slimmer 8 ounce cans that vanish in a few sips, and the case sits neatly on a pantry shelf without taking over. Polar also keeps the ingredient list at the single word water, which earns trust in a category cluttered with long chemical rosters. For a current look at pricing and pack options, the Amazon listing for Polar Seltzer Water Original is a useful reference.
Real-World Performance
My first tasting was the plainest possible test: a cold can opened and drunk over ice, With Nothing Added. The pour released a loud, lively hiss, and the first sip delivered exactly the kind of clean, dry bite that plain seltzer should provide. The finish was dry rather than sweet, with no lingering aftertaste, and the carbonation held through the entire can rather than flattening halfway through. That staying power is a genuine quality marker, since cheap seltzers often go limp in the last third.
Next I used it as a cocktail base, because unflavored seltzer is the workhorse of mixed drinks. A spritz with white wine and a few mint leaves came out bright and clean, and the bubbles lifted the aromatics without muting the wine. I also mixed it into a citrus heavy drink, and the neutral water let the fruit take center stage, which is exactly what a mixologist wants from a seltzer. Because there is no sweetness, the balance of any drink stays exactly where you put it.
I ran a side by side against two competing unflavored brands, one a national supermarket label and one a premium craft seltzer. Polar sat comfortably in the middle of both on fizz intensity, and beat the store brand clearly on carbonation life and finish. The craft brand had a slightly softer, more delicate bubble, but it also carried a higher price per can, which makes Polar the better daily value.
The one honest criticism is that plain Original will never satisfy someone looking for flavor or sweetness. It is uncompromisingly plain, and if you prefer a hint of lemon or a touch of sugar, you will need one of Polar's flavored lines instead. Within its own job description, though, this can does everything asked of it.
Pros and Cons
Pros:
- Clean, dry flavor with no sweeteners or added sodium
- Aggressive carbonation that holds up through the whole can
- Chills quickly and stays cold in an aluminum can
- Large 12 fl oz serving in a practical 18 pack format
- Simple, honest ingredient list that is easy to trust
- Recyclable aluminum packaging with no syrup residue
Cons:
- No flavor at all, which will not suit sweet drinkers
- Carbonation can feel too sharp for some palates
- Bulk pack takes up meaningful pantry space
- Plain cans offer no resealable closure for partial drinking
How It Compares
Unflavored seltzer splits into three practical categories: major legacy brands like Polar, supermarket store labels, and premium craft carbonated waters. I compared Polar Original directly against a store brand seltzer and a craft carbonated water to see where each earns its place.
| Feature | Polar Seltzer Original | Store Brand Seltzer | Craft Carbonated Water |
|---|---|---|---|
| Carbonation intensity | Sharp and active | Soft and quick to fade | Delicate and fine |
| Finish | Dry and clean | Slightly flat | Light and crisp |
| Ingredients | Water only | Water only | Water and minerals |
| Can size | 12 fl oz | 12 fl oz | 8 to 12 fl oz |
| Price per can | Low | Lowest | Highest |
| Carbonation life | Holds to last sip | Weakens early | Holds well |
Against a store brand, Polar wins on fizz intensity and staying power, and the difference is obvious in a side by side pour. Against a craft carbonated water, Polar trades a slightly softer bubble for a dramatically lower price per can, which makes it the better choice for daily drinking. The craft option still wins if you want minerality or a boutique name, and the store brand wins if your only concern is the lowest possible cost. For most people, Polar is the best balance of quality and value in the group.
Who Should Buy It
Buy this seltzer if you drink Sparkling Water daily and want a plain, dependable option without sweeteners or a premium price tag. It is a strong fit for soda drinkers making the switch to something lighter, for anyone tracking sugar or calories, and for home bartenders who keep unflavored seltzer on hand for spritzes and mixed drinks.
Skip it if you need fruit flavor, prefer a soft low fizz, or want the convenience of a resealable bottle that lasts several servings. If plain carbonated water is already a habit, this 18 pack is a sensible way to keep the pantry stocked. You can check the current price for the Polar Seltzer Water Original 18 pack on Amazon when you are ready to stock up.
How We Test
I tested Polar Seltzer Original over three weeks using the full 18 can case. I drank the first cans plain over ice to judge carbonation intensity and finish, then used a second set in mixed drinks and spritzes to check how the neutral water handled flavor. I also ran a controlled side by side against a supermarket seltzer and a craft carbonated water, comparing fizz on pour, carbonation life through each can, and final taste at the last sip.
I refrigerated the cans for 24 hours before each tasting to keep conditions consistent, and I noted temperature behavior, opening feel, and whether the carbonation survived the full volume. I did not test every flavor in the Polar line, only the Original unflavored product, and I cannot speak to can condition after rough shipping over very long distances. For broader context on how seltzer fits into a healthy diet, nutrition writers at Healthline's guide to carbonated water offer a useful summary. The Polar Seltzer Original listing on Amazon shows the current case pricing.
Polar Seltzer Water Original: Questions People Ask
How much carbonation does Polar Seltzer Water Original have?
The bubbles are noticeably crisp and sharp when the can is fresh, and they hold up well through the final pour of the can, with no noticeable flattening in the last third.
Does Polar Original seltzer contain any sugar or sweetener?
No. The Original line is unflavored and unsweetened, with zero calories, zero sodium, and no added sweeteners of any kind.
Are the cans recyclable?
Yes. The 12 fl oz cans are aluminum and fully recyclable, which keeps the environmental footprint lighter than most plastic bottles.
Is Polar Seltzer good as a cocktail mixer?
Yes. Its clean, neutral bubbles and complete lack of sweetener make it a versatile base for spritzers and mixed drinks without altering flavor.
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