Can fungus be eaten overnight?

Whether the fungus can be eaten after being left overnight depends on whether the fungus has deteriorated. If it has deteriorated, it cannot be eaten.

The soaked fungus has not deteriorated if it is well preserved and can be eaten overnight. If the fungus is soaked in water for too long, there is a risk of bacterial growth. The surface of the fungus may become sticky and have a peculiar smell. This kind of fungus cannot be eaten.