The function of a whisk is to beat air into the yolks or whites by rotating at high speed to form a stable structure

If you don't have a whisk, use chopsticks instead, take a chopstick, trap the top with a rubber band, and open it slightly at the bottom to increase the contact area

Then rotate it in one direction

Maintaining the speed, it will take about 10-15 minutes to beat the yolks, but longer to beat the whites to dry peaks. minutes, but beat the egg whites until dry peaks are longer.