Principle: Because the yolk can be solidified when it exceeds 60℃, and the egg white will not be solidified when it is lower than 80℃, hot spring eggs can be made by controlling the water temperature between 60-80℃.
Making hot spring eggs in thermos bottles or stews;
1. Boil the water to 75°C (if you are not sure about the temperature, please buy a thermometer for the kitchen).
2. Put the eggs and hot water at 75℃ in a thermos or stewing pot.
3. wait for 30 minutes to crack the eggshell and pour soy sauce on it.