While some carbonated water is natural, created as volcanic gases infuse the water in natural springs with bubbles and minerals, most sparkling water is made by forcing carbon dioxide, or CO2, into ...

Seltzer's Carbonation Is Artificial, While Sparkling Water's Bubbles May Be Natural Perhaps the biggest differentiator when it comes to styles of fizzy water is how they get their bubbles.

While some carbonated water is natural, created as volcanic gases infuse the water in natural springs with bubbles and minerals, most sparkling water is made by forcing carbon dioxide, or CO2 ...