Carbonated drink with carbonated water, both chilled. Carbonation levels range up to 5 volumes of CO per liquid volume. Ginger ale, colas, and related drinks are carbonated with 3.5 volumes. Other drinks, often fruity ones, are carbonated less. Carbonated drink Carbonated drinks are beverages that contain dissolved carbon dioxide. The dissolution of CO in a liquid, gives rise to "fizz" or "effervescence". The process usually involves carbon dioxide under high pressure. When the pressure is removed, the carbon dioxide is released from the solution as small bubbles, which causes the solution to become effervescent, or fizzy. A common example is the dissolving
Cask ale Cask ale Cask ale or cask-conditioned beer is unfiltered and unpasteurised beer which is conditioned (including secondary fermentation) and served from a cask without additional nitrogen or carbon dioxide pressure. Cask ale is also sometimes referred to as real ale in the United Kingdom, a term coined by the Campaign for Real Ale (CAMRA), often now extended to cover bottle-conditioned beer as well. Cask or barrel is a container. The Histories of Herodotus, written in 424 BC, refers to "casks of palm-wood filled with wine" being moved by boat to Babylon, though clay vessels would also have been used. Stout