A Complete Guide to Carbonated Water: Types, Differences, & More

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What’s the difference between sparkling water, club soda, seltzer water, and tonic water?
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Sparkling water. Club soda. Seltzer water. Tonic water. All of these different labels are enough to make your head spin—but are all these water varieties actually different, or they are just part of a big marketing ploy? We’ve got the inside scoop. Read on to learn all of the similarities and differences between these different water types, so you can be a bonafide expert by your next shopping trip.

Things You Should Know

  • Sparkling water and club soda are very similar, but have key differences—sparkling water is naturally sourced, while club soda isn’t.
  • Tonic water is carbonated like sparkling water and club soda, but it has quinine added to it.
  • Club soda and sparkling water can both taste slightly salty since they both have minerals added in.
Section 1 of 4:

Is sparkling water the same as club soda?

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  1. “Sparkling water” typically refers to naturally carbonated water that comes from a spring, well, or similar location. [1] Club soda, on the other hand, is regular water that’s manually carbonated and has additives like potassium sulfate and potassium bicarbonate mixed in. [2]
    • Carbonated water is an umbrella term for any type of bubbly water infused with carbon dioxide, including water that’s naturally or manually carbonated. [3]
    • Some people may use sparkling water as a synonym for carbonated water (along with “bubbly water” or “fizzy water”), though—it really depends on who you’re talking to. [4]
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Section 2 of 4:

Types of Carbonated Water

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  1. Sparkling water is naturally carbonated water that’s found in natural sources like springs and wells—the bubbliness is typically caused by sulfur and salt compounds that are present in the water. [5] Depending on where it comes from, sparkling water can have natural additives like calcium, sodium, and/or magnesium. [6]
    • Some people refer to this drink as mineral water. [7]
  2. Club soda is plain water that has carbonation and extra additives mixed in, like potassium bicarbonate and potassium sulfate. [8] Club soda doesn’t have a super unique flavor (compared to drinks like tonic water), so it’s often used to add an effervescent touch to a mixed drink. [9]
  3. Seltzer water is plain, manually carbonated water without any additives. Unlike club soda, seltzer water doesn’t have any potassium sulfate or potassium bicarbonate added in—it’s just water plus a little bit of carbonation. [10]
    • On its own, seltzer water just tastes like effervescent water. Many brands add a variety of sugar-free flavorings to their seltzer (like lemon-lime, mixed berry, or orange) to give their water a little more zest.
    • Handy gadgets like SodaStream make it easy to prepare seltzer water at home.
  4. Back in the late 1700s, “soda water” was just a synonym for manually carbonated water. In more recent years, it’s become an umbrella term for both club soda and seltzer water, depending on who you ask. [11]
  5. Tonic water is carbonated, but it typically has a sweetener (like corn syrup) mixed in, along with quinine (which makes the beverage taste a little bitter). It’s one of the titular ingredients in the popular “G&T” drink, which features a mixture of gin and tonic water. [12]
    • You can transform regular seltzer or sparkling water into tonic water using tonic syrup .
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Section 3 of 4:

Do club soda and sparkling water taste the same?

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  1. Club soda has minerals like potassium sulfate and potassium bicarbonate added in, which add a slightly saltier touch to the drink overall. Some varieties of sparkling water naturally contain different minerals which can make them taste a bit salty as well (or sometimes bitter). [13]
    • If your drink recipe calls for sparkling water, club soda should work in a pinch—at the end of the day, they’re both carbonated and unflavored water.
    • Certain sparkling water brands might taste a bit different from one another since their water is sourced from different places. [14]
Section 4 of 4:

Is carbonated water bad for you?

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  1. Some people worry about the higher acidity in carbonated water affecting their teeth, but this isn’t actually a big issue. So far, research shows that regular and carbonated water has about the same impact on your tooth enamel overall. Still, if you’d like to go the extra mile in protecting your teeth, here are a few things you can do: [15]
    • Sip plenty of fluoride-enriched water in addition to carbonated water.
    • Enjoy your carbonated drink all at once rather than sipping it over a long period of time.
    • Limit how much citrus-flavored water you drink, since citrus flavoring can be pretty acidic.
    • Steer clear of sugar-flavored drinks or sodas , which aren’t carbonated water at all.
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      References

      1. ↑ https://www.foodnetwork.com/how-to/packages/food-network-essentials/Club-soda-vs-seltzer
      2. ↑ https://www.allrecipes.com/article/club-soda-vs-seltzer/
      3. ↑ https://www.nytimes.com/2021/09/14/well/eat/seltzer-water-benefits.html
      4. ↑ https://slate.com/culture/2014/05/carbonated-waters-defined-what-are-seltzer-club-soda-soda-water-perrier-san-pellegrino-and-other-common-terms.html
      5. ↑ https://www.epicurious.com/ingredients/differences-mineral-water-tonic-club-soda-seltzer-article
      6. ↑ https://www.foodnetwork.com/how-to/packages/food-network-essentials/Club-soda-vs-seltzer
      7. ↑ https://www.epicurious.com/ingredients/differences-mineral-water-tonic-club-soda-seltzer-article
      8. ↑ https://www.epicurious.com/ingredients/differences-mineral-water-tonic-club-soda-seltzer-article
      9. ↑ https://www.foodnetwork.com/how-to/packages/food-network-essentials/Club-soda-vs-seltzer
      1. ↑ https://www.epicurious.com/ingredients/differences-mineral-water-tonic-club-soda-seltzer-article
      2. ↑ https://slate.com/culture/2014/05/carbonated-waters-defined-what-are-seltzer-club-soda-soda-water-perrier-san-pellegrino-and-other-common-terms.html
      3. ↑ https://www.allrecipes.com/article/club-soda-vs-seltzer/
      4. ↑ https://www.allrecipes.com/article/club-soda-vs-seltzer/
      5. ↑ https://www.allrecipes.com/article/club-soda-vs-seltzer/
      6. ↑ https://www.mouthhealthy.org/nutrition/the-truth-about-sparkling-water-and-your-teeth

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