Can I continue to eat half-cooked black fungus (wood ear)?

     In general, it is not recommended to consume undercooked wood ear mushrooms. The detailed explanation is as follows:

     Undercooked wood ear mushrooms may contain anti-nutritional factors, such as tannins and phytic acid. These substances may interfere with the body's absorption of certain nutrients, thereby reducing the nutritional value of food. In the undercooked state, the internal structure of the wood ear mushrooms may not be fully softened, which could increase the burden on the gastrointestinal tract after consumption, potentially causing symptoms of indigestion, such as bloating and abdominal pain.

     During their growth, wood ear mushrooms might absorb heavy metals and pesticide residues from the soil. If the mushrooms are not thoroughly cooked, these harmful substances may not be effectively eliminated, thus increasing the risk of ingestion. When washing wood ear mushrooms, if soaked in water for too long, they can easily spoil and breed large amounts of bacteria or other microorganisms. The bacteria present in undercooked wood ear mushrooms may not be completely killed, and consumption may lead to food poisoning or infection.

     When cooking wood ear mushrooms, ensure they are fully cooked. The mushrooms can be boiled in boiling water for several minutes until they become soft and fully cooked. Fully cooked wood ear mushrooms offer better texture and are safer to consume. Additionally, when purchasing, choose mushrooms that are glossy black in color, soft in texture, and without any unpleasant odor to ensure their quality and safety.