When the water temperature is boiled to about fifty degrees, put the soaked currant into it, when cooking currant, neither cold water under the pot nor boiling water under the pot, fifty degrees of lukewarm water is most suitable.

2.

Push gently with a wooden spatula to prevent sticking, after opening the pot to hit the cool water, continue to cook with a small fire, the second time after the pot is opened, then put in the cool water, continue to cook slowly with a small fire. After the water boils, turn off the fire and then simmer for two minutes to fish out.