If bird's nest becomes frozen food, it will affect the absorption of nutrients and taste. Please stew it for a week at a time (3-5g a day, 20g a week) and put it in the refrigerator. When you take it out again, you can directly pour hot milk to adjust the temperature, or you can mix cold milk and put it in the microwave oven. If it is hot, you can also take it out directly without heating and eat it with cold drinks.