1. You can add some baking powder in an appropriate amount and then beat it. This will have a higher chance of being whipped.

2. When the egg white cannot be beaten, you can also drop some white vinegar and beat it again, and then it can be beaten.

3. Choose fresh eggs with egg whites, not water. Add a little white vinegar and an appropriate amount of sugar to make it easier to beat the egg whites.

4. The temperature for beating egg whites in summer should be slightly lower, about 22 degrees. If the temperature is too high, you can put the egg whites in the refrigerator to refrigerate before beating. The ratio of egg whites also needs to be paid attention to.