Why when I add ice to ouzo,the ouzo itself becomes white?

Question

what's the chemistry behind it?

Answer 1

Isn't about the chemistry,is about a natural sweet flavoring called as "glykanisos" added on Ouzo. In Greece also made and another variety without glykanisos which is stronger and tasteless, in that variety when add ice Ouzo don't becomes white.

   P.S. Always buy expensive varieties of bottled Ouzo and not the cheap ones.  

Answer 2

Ouzo (and other similar drinks such as pastis & absinthe) is an alcoholic solution of  the essential oil of anise and other flavourings. Adding water causes the solvation power of the ethanol to change, the oil comes out of solution and creates an emulsion, whose fine droplets scatter the light.  

Answer 3

Ouzo is clear !!!

Answer 4

It isn't the ice that does it, it would do the same if you added water.

Answer 5

When water or ice is added to ouzo, which is clear in color, it turns milky white; this is because anethole, the essential oil of anise, is soluble in alcohol but not in water. Diluting the spirit causes it to separate creating an emulsion, whose fine droplets scatter the light. This process is called louching, and is also found while preparing absinthe, or any Pernod.