An authentic latte consists of 70% milk, 20% milk foam and 10% coffee. Although coffee has the least ingredients, it is decided to be called coffee. There is an important moral here: the minority does not necessarily obey the majority, and the minority often becomes the protagonist in a specific environment.

Exercise:

1. Soak the cup (warm cup) with hot water to raise its temperature, and then pour out the excess water for later use.

2. After grinding the deeply roasted coffee beans, pour the coffee powder into a press, flatten the coffee powder with a press bar, and then buckle the press on an espresso machine for extraction to extract the espresso (the ratio of coffee to fresh milk is 1: 1).

3. Put a proper amount of milk under the steam nozzle of the espresso machine and steam it into hot milk.

4. Pour the steamed milk into the cup.

5. Shake the cup up and down to make the milk foam rise.

6. Finally, slowly pour the espresso into the cup.