After the black fungus is soaked, take it out and eat it overnight. Whether auricularia auricula can be eaten overnight after soaking in water depends on different situations, which is related to time, temperature, effective preservation and the texture of auricularia auricula after overnight. The specific analysis is as follows: 1. Soaking time and temperature: when soaking auricularia auricula, the soaking time is just right and the water temperature is just right. You can also eat it overnight. If the fungus is soaked for a long time, the water can't be eaten when the temperature is high. 2. The texture of black fungus after overnight: If the texture of black fungus is still tough after overnight, the color is full and there is no odor, it can be eaten. If the black fungus turns black overnight, it feels sticky and smells bad. For safety reasons, it is not edible. Precautions for soaking fungus: The fastest way to soak fungus is to seal the bubble. For example, put dried fungus in a fresh-keeping box, add warm water, salt and edible alkali, cover it, and shake well 1 min. Soak auricularia auricula in cold water: This method can soak auricularia auricula quickly, make it clean, shake it to make water molecules move faster, and auricularia auricula absorbs water and expands faster, so it soaks quickly.