The tiny, almost forgettable difference comes down to what the company adds on top. Soda water, also known as club soda in some circles, usually has a pinch of minerals added back to it. We’re talking tiny amounts of potassium sulfate, sodium bicarbonate, or sodium chloride.
Why add minerals? It’s purely to create a cleaner, more "salty" taste that mimics natural spring water. Think of it as the water that got dressed up for a fancy dinner party, while seltzer showed up in its pajamas.
Most people, including me, cannot taste the difference in a blind taste test. You’d have better luck telling apart two identical twins just by their sneezes.
A Tale of Two Bubbles
Let’s get anecdotal. Have you ever taken a gulp of seltzer and it felt a bit... aggressive? That sharp, almost acidic bite? That’s the carbonic acid doing its thing, and it can feel a little more "jumpy."
Soda water, with its mineral salts, often feels smoother on the tongue. It’s like the difference between a hyperactive puppy bouncing off the walls and a slightly mellowed-out dog who still wants to play but won’t knock you over.
The truth is, the brand makes a bigger difference than the label. LaCroix has a specific vibe, while Canada Dry club soda has its own. Choose your fighter based on brand loyalty, not science.
