Crema

Crema refers to the rich, golden-brown froth that forms on the surface of a well-prepared espresso. It results from the emulsification of oils in the coffee beans during the brewing process, mixed with carbon dioxide released from the coffee. A good crema indicates freshness and quality in the espresso, contributing to its flavor and aroma. It enhances the overall coffee experience, as it adds a smooth texture and can carry aromatic compounds that influence the taste. In essence, crema is an essential and desirable aspect of a quality espresso shot.