1, Bittering Tea is a common Chinese herbal medicine and traditional drinks, but Bittering Tea in the picking, storage and processing will be affected by pests or mold, resulting in the phenomenon of bugs or strange taste. It is a slight insect damage or mold, do not drink, because it contains toxins or bacteria, there are harmful to human health.

2, bitter tea itself is a bitter herb, has a certain irritation, long-term excessive drinking will produce gastrointestinal stimulation and damage, but also cause headaches, insomnia and other discomforts.