Authored by GUNDAI

During hot summer days, nothing beats a refreshing sparkling cocktail. If you prefer less sweetness, drinks like Gin Fizz and Highball are excellent choices, all sharing the common ingredient of sparkling water. However, a closer look at various sparkling water labels reveals different terms: some say "Soda," others "Seltzer," and some "Sparkling Mineral Water." What's the difference between these names?

Although they're all sparkling water, these different classifications actually represent distinct products with unique characteristics. Let's explore the differences between each type.

Seltzer Water: Pure and Simple

Seltzer, also known as soda water. It’s just water infused with carbon dioxide—no added minerals or flavors. This makes it a neutral and clean-tasting option, perfect for cocktails that let the base spirit shine.

In fact, many bartenders prefer seltzer for mixing because it doesn’t interfere with other ingredients. It’s also the base for many flavored sparkling waters (just add fruit extracts!).

Club Soda: Sparkle with a Hint of Minerals

Club Soda is also carbonated water, but with a twist—it includes added minerals like sodium bicarbonate, sodium citrate, or disodium phosphate. These give it a slightly salty, mineral-like taste, similar to bottled mineral water.

While the taste difference is subtle, it can enhance certain cocktail flavors—especially citrus-based ones. Some bartenders prefer it for that extra complexity, though you can replicate the effect by adding a drop or two of salt to seltzer for better control.

Sparkling Mineral Water: Naturally Fancy

Sparkling Mineral Water (or Sparkling Water) is naturally sourced from springs or wells and contains various naturally occurring minerals. Each brand’s mineral content differs, which gives every bottle its own distinct flavor profile.

It may be naturally carbonated, or have CO₂ added later. While delicious on its own, it’s usually not ideal for cocktails—both due to cost and the potential to overwhelm delicate flavor balances. That said, if you find a perfect pairing, it can be spectacular.