Which statement accurately describes layering in drinks?

• A. Layering uses density differences and pouring gently over the back of a spoon.
• B. Layering is the same as floating and uses quick pours.
• C. Floating uses density differences.
• D. Pouring quickly from the side is best for layering.

Answer: (A)

Layering rests on density differences between liquids. Denser liquids stay at the bottom while lighter ones float on top, so you can see distinct layers. To keep them separate, pour very slowly and guide the flow so it doesn’t mix with what’s already in the glass—often by pouring over the back of a spoon. This gentle technique is what makes layering possible, linking the idea of density separation directly to a controlled pour. The other statements describe different ideas or encourage pouring methods that disturb the liquid and cause mixing, which is why they don’t produce true layers.