It's for these reasons that the glass is shaped like it is; as with the highball, a narrow opening preserves the drink's carbonation and also ensures that the ice cubes are stacked atop one ...

KANAZAWA--As soon as the carbonated drink is poured into the glass, a special stick of ice inside vanishes like a ninja. The so-called “ninja ice” is proving to be a hit in the U.S. market ...