The low temperature in the refrigerator is the best way to preserve eggs. If boiled eggs can't be eaten at one time, you want to keep them for a few more days. It is best to put them in the refrigerator for 4-5 days, but not for too long. When there is no refrigerator at home, eggs can also be soaked in cold salted boiled water. The concentration of salt in salted boiled water is high, which has inhibitory effect on many fungi. Cooked eggs can also be preserved for 2~3 days.
Preservation of eggs
Eggs sold in the market are generally stored at room temperature, and shell bacteria may penetrate through eggshells and egg membranes and penetrate into eggs. The longer they are stored, the more bacteria there are in eggs. This kind of egg may contain pathogenic bacteria such as Listeria, Salmonella and Staphylococcus aureus, which may cause other serious diseases besides gastroenteritis.
Therefore, after buying eggs, clean them, then store them in the refrigerator, and try to eat them within one week. Many people buy eggs that can last for a month, which will not only bring security risks, but also make the nutrition of eggs worse.
In the United States and other countries, the shelf life of eggs is usually limited to 45 days, and eggs must be stored below 7 degrees Celsius during disinfection, transportation and sale.