Traditional espresso is:Traditional espresso is:VolumeWater TemperatureSingle Espresso:1 to 1.25 ounces 29.5 to 37 milliliters90 C ± 5 C 194 F ± 9 FDouble Espresso:2 to 2.5 ounces90 C ± 5 C 194 F ± 9 F
As a result of the increase water, there's a significantly larger shot. Once it's in the glass, a lungo is roughly the size of a doppio, or double shot of espresso. However, the size isn't the only difference for this drink. As far as making one at home, many espresso machines have a preset for it.