Excellent question, my thirsty friend. Seltzer is the plain Jane of the group. It’s just regular tap water that’s been carbonated, with nothing else added. No minerals, no baking soda, no flavour. It’s the introvert who’s happy to just sit there.
Then we have club soda, which is basically soda water’s twin. It also has added minerals (like potassium bicarbonate and sodium citrate), but usually less baking soda than traditional soda water. Club soda is the compromise child: bubbly enough for a cocktail, but not trying to steal the show.
So to recap: Seltzer = naked water with bubbles. Soda water = water with bubbles and baking soda. Club soda = water with bubbles and a different mineral mix. Sparkling mineral water = fancy spring water with natural bubbles and rocks.
Is Sparkling Mineral Water The Same As Sparkling Water
If you ever mix them up in a drink, the only person who will notice is you—or maybe a snooty bartender with a monocle. Ignore them.
The Great Flavor Debate
Let’s be honest: in a blind taste test, most of us would struggle to tell the difference. But there are subtle clues. Sparkling water tastes “terroir-y,” like the earth itself. Soda water has a faintly salty, almost soapy finish. Seltzer just tastes like water that got an electric shock.
One fun experiment: mix a little lemon juice into each type. Soda water will fizz a bit more aggressively because the baking soda reacts with the acid. It’s a mini science fair in your kitchen! Parents, this is a great way to distract your kids for ten minutes.