What does a "float" mean in cocktail preparation?

In cocktail preparation, a "float" specifically refers to the technique of layering a liquid on top of another in a drink. This method is often used to create visually appealing drinks with distinct layers of different colors and densities. When done correctly, the floated liquid sits on the surface of the cocktail, enhancing both the presentation and the drinking experience.

For example, when making certain cocktails like a Pousse Café or a layered shooter, bartenders pour ingredients gently over the back of a spoon to prevent them from mixing, allowing the heaviest liquids to sink while the lighter ones remain on top. This not only showcases the various colors but can also add different flavors as the drinker sips through the layers.

This technique is crucial for bartenders aiming to create both classic and innovative cocktails that are not only delicious but also visually striking.