This beverage was consumed by cyclists as a refreshment and influenced the Punjab tradition of Doodh soda, a drink of milk mixed with Sprite or 7 Up.
Along with carbon dioxide, the yeast also produces lactic acid, aromatic compounds and a small amount of ethanol.
The "dry" method involves adding powdered milk to a liquid, which then produces carbon dioxide when the two are mixed.
[13] Carbonation has been shown to increase the perceived intensity of flavorings and sweetness, as well as bitterness and chalkiness at higher levels.
[15] The means by which carbon dioxide reduces spoilage is unknown, but suggested mechanisms include displacement of oxygen, acidification and direct effects on microbial metabolism due to cellular penetration.
With liquids such as milk, this can be achieved using injection or by filling the container's headspace with carbon dioxide.
[18] Vio is a mix of flavored milk and carbonated water made by The Coca-Cola Company.
[12] Milkis is a South Korean brand of carbonated milk, which is also sold in Taiwan and other nearby countries.