Whats the brown layer on top of an espresso?
The light brown layer that floats on top of an espresso is known, in Italian, as the crema. Distinguished by its caramel-colour, the crema is the essence of authentic espresso. The crema carries a variety of flavours that comprise the coffee bean. The presence of crema mean the espresso is fresh and perfectly prepared. It is a natural layer produced by the pump pressure.