How long should I keep the fungus? I can't eat it anymore

Auricularia auricula should not be consumed after being stored at room temperature for more than 24 hours or refrigerated for more than 3 days. The deterioration of black fungus may be caused by factors such as microbial growth, loss of nutrients, changes in taste, abnormal color, and the production of odors. Auricularia auricula is rich in protein and polysaccharides, which can easily breed bacteria and mold in humid environments. Fresh fungus has a high moisture content after harvesting, and microorganisms will rapidly multiply at room temperature, leading to spoilage. Unsoaked dried fungus can be stored for a long time in a dry and ventilated environment, but it should be consumed as soon as possible after soaking. refrigeration can slow down the rate of spoilage, but it may still cause safety issues due to the proliferation of low-temperature cold resistant bacteria after more than 3 days. If the soaked black fungus appears sticky, smooth on the surface, has a sour and rotten taste, or turns red and black in color, it has deteriorated. Eating spoiled fungus by mistake may cause symptoms of gastroenteritis, which can lead to vomiting and diarrhea in severe cases. Partially spoiled fungus may produce toxins such as glycolytic acid, which cannot be completely destroyed by high-temperature cooking. When storing, avoid contact with perishable foods such as raw meat and seafood. It is recommended to use purified water and refrigerate for soaking.

It is recommended to choose high-quality products that are dry and free of mold when purchasing dried fungus. After soaking, drain the water and pack for refrigeration. Before cooking, check again for any odor or texture changes. Cold mixed fungus should be cooked and eaten immediately to avoid overnight. Pay attention to sealing and moisture prevention during daily storage, and regularly check inventory to avoid expiration. If you experience discomfort after ingesting spoiled fungus, seek medical attention promptly and keep the sample for testing.