The process involves chilling and combining ingredients for cocktails or other beverages within a specialized vessel. This tool, typically constructed of metal or glass, ensures proper mixing and temperature control through vigorous agitation. A simple example is using it to combine vodka, cranberry juice, and lime juice to create a Cosmopolitan cocktail.
Mastering this skill is essential for achieving desired textures, flavors, and presentation in mixed drinks. This technique enhances the beverage by properly integrating flavors, chilling the liquid rapidly, and creating a smooth, consistent texture. Its origins can be traced back to the mid-19th century, evolving into a staple of professional and home bartenders alike.