Carbonated & Nitrogenated Water

Carbonated water is water that has been infused with carbon dioxide gas under pressure. This process creates the familiar 'fizz' and slight tartness. Nitrogenated water is similar but uses nitrogen gas, which creates smaller, more stable bubbles and a smoother mouthfeel.

These are primarily used as the base liquid in carbonated beverages like sodas, sparkling waters, and some energy drinks. Manufacturers add them to provide effervescence, a refreshing mouthfeel, and to carry other flavors and ingredients.

Carbonated and nitrogenated water are generally considered safe for consumption. The FDA lists carbonated water as Generally Recognized As Safe (GRAS). The primary health consideration relates to the sugar and other ingredients often added to these beverages, rather than the water itself. JECFA and EFSA have not specifically evaluated plain carbonated or nitrogenated water as separate food additives.