1, eggs can't be placed horizontally: because the specific gravity of egg yolk is smaller than that of protein, if the egg is placed vertically, the egg yolk will float up, cling to the eggshell and become sticky. Therefore, eggs should not be placed horizontally.

2. Refrigerator storage: put the big head up and the small head down, so that the yolk floats under the air chamber, which can not only prevent microorganisms from invading the yolk, but also help to ensure the quality of the egg. If inverted, the egg yolk will sink into the "big head" air chamber and "ventilate" with the outside air, so it will speed up the spoilage of eggs, which is not conducive to long-term preservation. If there is dirt on the surface of the bought egg, you can't wash it with water, otherwise the egg will go bad easily. Fresh eggs taken out of the refrigerator should be eaten as soon as possible, and should not be stored for a long time or refrigerated again. Because the eggs taken out of the refrigerator will produce small drops of water on the surface when exposed to hot air, so miscellaneous bacteria will attach to them.

3. Avoid coexistence with volatile substances: strong smells such as onions, ginger, peppers, etc. It will penetrate into the egg through the small holes in the eggshell and accelerate the deterioration of the egg.

4. How not to store in cold storage: Try to make egg-shaped holes with clean paper or cloth, so that each egg has an independent storage space to avoid direct exposure to the air. This can reduce the chances of bacteria and microorganisms invading and prolong the storage time of eggs.