We get carbonated water by infusing water with carbon dioxide gas under pressure. This process creates the effervescence, or bubbles, characteristic of this popular beverage.
The Carbonation Process
According to the reference, carbonated water is simply water that has been infused with carbon dioxide gas under pressure. Think of it like forcing CO2 gas to dissolve into the water by applying external pressure. When the pressure is released (like when you open a bottle or can), the dissolved gas escapes, forming the bubbles you see and creating that fizzy sensation.
Step-by-Step (Simplified)
- Source Water: Start with purified water.
- Introduce CO2: Carbon dioxide gas is introduced into the water.
- Apply Pressure: The mixture is put under pressure, forcing the CO2 gas to dissolve into the water.
- Seal: The container is sealed to maintain the pressure and keep the gas dissolved.
When the seal is broken, the pressure drops, and the dissolved CO2 turns back into a gas, forming bubbles and giving the water its 'sparkle'.
Different Names, Same Fizzy Concept
The resulting bubbly drink obtained through this carbonation process goes by several names, including:
- Sparkling water
- Club soda
- Soda water
- Seltzer water
- Fizzy water
While they all share the fundamental characteristic of being water infused with CO2, there can be slight differences. As noted in the reference, apart from seltzer water, other types like club soda or soda water usually have salt added to improve their taste. Seltzer water is typically just plain water and CO2.
This simple process allows for a wide variety of bubbly drinks enjoyed worldwide.