Is it safe to make delicious eggs from ordinary eggs?

Not safe.

Pay special attention to hygiene when eating boiled eggs, and eggs with sterilized surfaces are more assured. When the whole egg is boiled, it is best to let the egg boil in boiling water for 3 minutes, and then turn off the fire and stew 10 minutes or more.

A boiled egg is a boiled egg whose yolk can still flow. The more popular way to eat is to marinate eggs, which are soaked in soy sauce for about 2 days after cooking, and some are eaten directly with pasta after cooking.