Carbonation is dissolved carbon dioxide in a liquid, held in solution under pressure and released as bubbles when exposed to air or agitation. In cocktails, carbonation comes from sparkling ingredients (tonic, club soda, ginger beer, sparkling water) or from force-carbonating a batch using CO₂. The size and behavior of bubbles differs between carbonation sources — fine, persistent bubbles (like in tonic or Champagne) feel more elegant than large, coarse bubbles (club soda). Carbonation preserves as long as you minimize agitation after adding the sparkling element.
Why It Matters
Carbonation adds a textural dimension to drinks that cannot be replicated otherwise. A Paloma without the grapefruit soda fizz is just a sweet-sour drink. With carbonation, it becomes bright, lively, and refreshing. Carbonation also amplifies aroma — bubbles carry aromatic compounds to the surface.
Where You'll Use It
Any drink with a sparkling mixer. Build method is essential for preserving carbonation.