Soda water, also known as seltzer water or club soda, is a water that has been carbonated. It is often used in cocktails as a mixer to add fizz and dilute the drink.

Soda water is made by injecting carbon dioxide gas into water. The gas dissolves into the water, and when the water is bottled and opened, the gas escapes and forms bubbles. The level of carbonation in soda water can vary, but most bottled soda water has a …