1. Soup smells a strange taste, and the taste is very strong, then it must have deteriorated bad.

2. Peach Gum Snow Bird's Nest Silver Ear Soup should not be eaten overnight. Not spoiled case can be eaten, but the nutritional value will be greatly reduced.

3. Silver fungus and peach gelatin are nutritious health products, reasonable preservation of silver fungus and peach gelatin overnight generally do not deteriorate, but because of the long time to place, the nutrients will be a large loss.

4. If you consume spoiled ginkgo biloba and peach gum soup, it may lead to gastrointestinal discomfort, resulting in diarrhea, vomiting, nausea and other uncomfortable symptoms, because the soup is prone to breeding a lot of bacteria.