Green tea is one of the main types of tea in China, rich in vitamins, amino acids, tea polyphenols and other nutrients. The shelf life of green tea is generally 18 months, put a few years of green tea, if more than the shelf life, you can not drink. Green tea is rich in nutrients, can help the body to supplement the required nutrients, if the green tea is placed for too long, it is recommended that you should not drink it. If the consumption of green tea has deteriorated mold, not only will affect the nutritional value and taste of green tea, but also may lead to diarrhea, abdominal pain and other physical symptoms. If you drink spoiled green tea discomfort, it is recommended to go to the hospital in time for diagnosis and treatment.