Layering & Floating
How to create visually stunning layered cocktails and perfect floats — from the Tequila Sunrise to a Guinness float.
The Science of Density
Layering works because different liquids have different densities — denser liquids sink, lighter ones float. Sugar content is the primary driver: a high-sugar grenadine sinks below tequila, which sinks below orange juice. Alcohol content also plays a role, since pure alcohol is less dense than water. Understanding this lets you predict and control layers without guesswork.
How to Float a Spirit
A float is a single layer of spirit or liqueur poured on top of a finished drink. The classic example is a dark rum float on a Painkiller or a Jungle Bird. Pour the float last, very slowly, over the back of a bar spoon held just above the surface of the drink. The spoon disperses the liquid gently so it doesn't punch through the layer below. The float stays on top until the drinker stirs it in.
The Pour-Over-Spoon Technique
Hold a bar spoon, bowl-side down, just above the surface of the drink with the tip touching the inside of the glass. Pour the floating liquid slowly over the back of the spoon. The spoon breaks the force of the pour and spreads the liquid across the surface rather than letting it sink. Practice with water and food coloring before attempting with expensive spirits — the technique takes a few tries to get right.
Classic Layered Drinks
The Tequila Sunrise layers grenadine (dense, sinks) under tequila and orange juice. The B-52 shot layers Kahlúa, Baileys, and Grand Marnier in order of density. The New York Sour floats a red wine layer on top of a whiskey sour. The Pousse-Café is the most extreme example — up to seven distinct layers of liqueurs, each chosen for its specific density. Start with the Tequila Sunrise before attempting anything more complex.
When to Layer vs. Stir
Layer when the visual effect is part of the drink's identity — the Tequila Sunrise is meant to look like a sunrise, and stirring it defeats the purpose. Float when you want a burst of flavor on the first sip that integrates as the drink is consumed. Stir when you want a homogeneous, integrated drink. Never layer a drink that's meant to be stirred — the visual effect isn't worth the loss of balance and integration.