Puerh tea is usually not carcinogenic if there is no quality problem; if there is deterioration, it may cause cancer.
Puerh Tea Raw Tea refers to fresh tea leaves that are not fermented after picking, but aged in a natural way. Whether or not this kind of raw tea causes cancer is closely related to the quality of the tea leaves. Puerh raw tea requires high preservation conditions, both ventilation and to maintain a certain degree of humidity, if the quality of raw tea is good, drinking is generally not carcinogenic.
If Pu-erh tea deterioration occurs during the preservation process, a large amount of aflatoxin is produced inside the tea leaves, etc. As aflatoxin has strong biological toxicity, once it enters the human body through metabolic activation, it will produce a strong carcinogenic effect, and if people accidentally consume deteriorated Pu-erh tea, it is possible to cause cancer, but this phenomenon does not absolutely occur.
In order to avoid cancer, usually drinking Puerh tea, pay more attention to the quality of raw tea, if the body has abnormalities, to go to the hospital in a timely manner.