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