Doppio

Doppio espresso is a double shot which is extracted using double the amount of ground coffee in a larger-sized portafilter basket. This results in 60 ml of drink, double the amount of a single shot espresso. Doppio is an Italian multiplier meaning 'double'. It is commonly called a standard double, due to its standard in judging the espresso quality in barista competitions, where four single espres... (Wikipedia)