soda water

Soda water, also known as carbonated water, is a beverage made by charging water with carbon dioxide gas. This process, called carbonation, gives the drink its characteristic sparkle and tangy taste. Carbonation also helps preserve the beverage, meaning it doesn't require pasteurization.123

While plain carbonated water is a beverage on its own, it's also the base for soda pop, which includes added flavoring and sweet syrup. The development of carbonated beverages began in Europe during the 17th century, as people tried to replicate the effervescence of natural spring waters, often for their perceived health benefits.43