1. Put the eggs in the container so that they don't touch each other. Add enough vinegar to drown the eggs;

2. Cover the lid, put it in the refrigerator and let the eggs soak in vinegar for 24 hours;

3.？ Scoop vinegar eggs with a large spoon;

4. Pour out the vinegar in the container, and add new vinegar and shell-less eggs. Put it in the refrigerator for 24 hours, and take it out as a shell-free egg;