Materials: covered cup, tinfoil, milk, the specific steps are as follows:

1, milk poured into the cup, tinfoil kneaded into a small ball together.

2, tighten the lid, vigorously shake the bottle. (Note that the lid must be screwed tightly, otherwise it is easy to overflow)

3, shake for about 5 minutes, it is soon delicate. This is the practice without a whisk, if there is a whisk, directly with a whisk can be.

4, milk foam shake out, remember to use chopsticks to clip out the tinfoil.

5. Pour the milk froth into the brewed black coffee, and it's ready to drink.

Reference: Baidu Encyclopedia - Milk Froth