Eggs should be kept in the refrigerator airtight. This is because the air in the refrigerator is relatively dry. If the egg is placed open, it is easy to absorb the moisture in the refrigerator, resulting in moisture on the surface of the eggshell, which may even cause the proliferation of microorganisms on the eggshell, thus affecting the quality and taste of the egg. Therefore, putting eggs in closed containers can effectively prevent the invasion of moisture and odor, and maintain the freshness and quality of eggs.