The method/steps are as follows:
Prepare eggs and thermos bottles.
Add a certain amount of cold water. It should be noted here that the amount of water added needs to exceed the surface of the eggs placed behind by several centimeters (water can be added after the eggs are placed).
Carefully put the eggs into the electric kettle to prevent them from breaking due to excessive force. Because water is added in front, eggs should not be fragile because of the buoyancy of water, but should be put in carefully.
Turn on the switch of the electric water heater and start boiling eggs.
Wait until the water boils, let it stand for about 5-8 minutes, then pour out the hot water inside and take out the eggs.
You can enjoy boiled eggs.