World Barista Championship (WBC, World Barista Championship), espresso (Espresso) need to meet the following conditions:

1. The volume of an espresso is 1 ounce (ounce) (25-35 ml including crema)

2. p> 2. An espresso is extracted from several grams of coffee (the exact number of grams depends on the coffee and the degree of grind)

3. The temperature of the water used for the extraction is between 90.5-96 degrees Celsius (195-205 degrees Fahrenheit)

4. The extraction pressure of the espresso machine is between 8.5-9.5 atmospheres

5. The coffee extraction time is best between 20-30 seconds. Between 20-30 seconds, but not mandatory

6. The difference in extraction time for espresso used in the same drink must be kept within 3.0 seconds

7. The espresso must be served in a 60-90ml (2-3 ounce ounce) cup with one lug

8. The espresso must be accompanied by a spoon, a coffee scoop, and a cup with one ear. The espresso must be served with a coffee spoon, paper towel and water.