What is Crema in espresso?

Crema in espresso is recognized as a fluffy top layer that has a smooth caramel color. It forms during the brewing process when hot water emulsifies the oils in the coffee grounds, combined with the gases released during extraction. This creates a rich, aromatic layer that enhances the sensory experience of sipping espresso.

Crema plays a vital role in the overall flavor profile and mouthfeel of the espresso. It is an indicator of quality and freshness, contributing to the coffee's visual appeal as well. A well-poured espresso with a good layer of crema signifies that the extraction was performed correctly, allowing the flavors and aromas to be optimally expressed.

Other descriptions like the bitter part, a layer of air, or the body of the espresso do not accurately capture the unique characteristics and significance of crema in the espresso experience.