Drink: Espresso

Espresso extraction is the most efficient and difficult of all coffee-brewing methods.

Making perfect espresso requires a skillful balance of three key processes:

1. compacting the grinds into the filter basket on the coffee machine.
2. pouring the espresso shot.
3. grinding the beans correctly.

If the grind is too coarse, the expresso will be thin and watery. If it is too fine, the coffee will taste bitter. In both cases, when the espresso comes out of the spout, the crema; the golden froth on the surface of the fresh espresso will indicate how well the oils have been extracted.