The standing summer egg is one of the food that must be eaten every year during the summer festival, and there is a custom of eating eggs in the summer, "if you eat the egg in the summer, you will not be resisting the resistance of the summer in the hot days", in addition to eating it, there is also the fun game of standing up the egg in the summer.

The most important thing is to let the center of gravity of the egg down, while holding the egg, waiting for the yolk to sink in a stationary state, you can let the egg stand up, which is not simple.