Can you still eat tremella that has expired three years ago?

It is generally not recommended to consume silver ear fungus that has expired for three years, as it may have adverse effects on health.

Silver ear fungus is a common type of edible mushroom. Once expired, its quality deteriorates to some extent. The fungus becomes drier, loses elasticity, and may even spoil in some cases. Eating expired silver ear fungus not only results in poor taste but also means reduced levels of essential nutrients such as vitamins, minerals, and other beneficial compounds. Moreover, food that has been expired for a long time may be contaminated by various microorganisms, including molds and bacteria. Consuming such contaminated food could lead to food poisoning, causing symptoms like headache, nausea, and vomiting. In severe cases, it may even result in toxic shock.

In daily life, it's important to avoid eating expired food. If you accidentally consume expired food and experience any discomfort, seek medical attention promptly to prevent the condition from worsening.