Cold preserved eggs are not recommended to be eaten overnight. Preserved eggs are preserved foods. Preserved eggs overnight can provide enough nutrition for salmonella, even if they are put in the refrigerator, they will deteriorate, and may cause abdominal pain, diarrhea and other physical discomfort after eating. Preserved eggs should not be eaten more. Add some Jiang Mo and vinegar to detoxify.

Its cholesterol content is also high, and people with cardiovascular diseases and liver and kidney diseases should eat less. If it is used for a long time, it contains heavy metals such as lead, and hydrogen sulfide is harmful to human body.