What Causes the ‘Taste’ of Carbonated Water?

Carbonated water gets its taste from tiny bubbles that pop inside your mouth.

Imagine you're drinking a fizzy soda like a lemon-lime drink. When you take a sip, you feel a little tingle or sparkle on your tongue, that’s the fun part! These feelings come from carbon dioxide, which is like invisible air that turns into bubbles when it mixes with water.

When you open a bottle of carbonated water, pressure changes let the carbon dioxide escape. It goes from being squished inside the bottle to floating around in your glass. This makes the bubbles appear, like tiny air pockets dancing up through the liquid.

These bubbles don’t just make it fizzy, they also help carry flavors to your tongue. Think of them as little helpers that say, “Hey, taste this!” So when you drink carbonated water, it feels more lively and exciting than still water, like the difference between a calm lake and a bubbling stream!