“鸡蛋买回家不能水洗存储”？一盘炒蛋让一家三口集体中毒，专家提醒

A family in Shenyang, Liaoning province, suffered food poisoning after eating scrambled eggs, with the practice of washing the eggs before storage identified as a likely factor. The case has sparked widespread discussion.

水洗鸡蛋会破坏蛋壳的胶状保护膜

微生物趁虚而入

Sun Jing, a researcher at the Hubei Academy of Agricultural Sciences, told reporters that eggshells contain numerous pores that are invisible to the naked eye. After a hen lays an egg, a natural protective coating, known as the cuticle, forms on the shell. It helps prevent bacteria and mold from entering the egg while reducing moisture loss and preserving freshness.

Washing or soaking eggs can damage or remove this protective layer, leaving the pores more exposed. Salmonella and other microorganisms in the environment can then more easily enter the egg, increasing the risk of contamination and potentially shortening its shelf life even when refrigerated.

For storage, eggs should be placed with the larger end facing up so that the air cell remains at the top. This helps keep the yolk from pressing against the shell and may reduce the risk of yolk rupture and spoilage. When stored in a refrigerator at 0 to 4 C, fresh eggs can generally be kept for an extended period, although the exact shelf life varies depending on storage conditions and the eggs' freshness.

鸡蛋如何正确保存？

鸡蛋很容易被各种物质污染，怎样才能正确地保存鸡蛋，安全食用呢？

Eggs should not be frozen in their shells, as freezing can cause the shells to crack and alter the texture of the yolk and egg white. Avoid rinsing eggs before storage. If the shell is dirty, place the egg in a sealed bag or container and wash it immediately before cooking. Eggs should also be kept separate from other foods in the refrigerator, as their shells may carry pathogens and dirt. Proper separation can help prevent cross-contamination.

最后，要注意鸡蛋不能无限期地存放下去。一般来说，保存1至2周的鸡蛋食用是没有问题的，且口感、营养俱佳；最长不要超过1个月，否则不仅营养成分会大量流失，鸡蛋还会变成“坏蛋”。

跟着China Daily

精读英语新闻

“无痛”学英语，每天20分钟就够！

↓↓↓