What You Need to Know
The process relies on Henry’s law, where CO₂ solubility increases with pressure and decreases with temperature. Dissolved CO₂ reacts with water to form carbonic acid (CO₂ + H₂O ⇌ H₂CO₃), giving the beverage its characteristic acidity and effervescence. Proper temperature control, agitation, and pressure management are essential to achieve uniform carbonation and prevent CO₂ loss.
The Science
Primary Reaction
CO₂ + H₂O ⇌ H₂CO₃