It is said that this is a kind of China's precious tea, called the Year of the Crane Tea. This kind of tea can play a health-preserving role, because some countries where Zheng He went to the Western Seas had some diseases, and it was definitely unbearable for people to stay at sea for a long time. Moreover, because people have no preventive measures when they encounter these diseases, they can only wait for death slowly. Faced with such a situation, Zheng He certainly couldn't turn a blind eye, and at that time, Zheng He knew some prescriptions that could prevent these diseases, namely Ding Henian's Golden Decoction for Avoiding Epidemic.

So when Zheng He came back, he went to consult Ding Henian and told the emperor about it. However, because the making of this soup without plague is very complicated, and it is not easy to make on board, it can only be solved by other methods, so Ding Henian studied this health tea in the Year of the Crane with the same principle, because it can be used by sailors. After all, because I work at sea, it must be very convenient to carry.

At that time, Ding Henian made this soup into portable tea, so that it could be carried when traveling at sea, and it could also prevent the occurrence of some diseases such as plague, so that the crew on Zheng He's ship had protection, and because it was very easy to use, it was given to Zheng He's treasure ship by the emperor, which is why this kind of health tea in the Year of the Crane was regarded as precious tea. After all, this tea plays a very important role.

In addition, the healthy tea in the Year of the Crane was given to other countries by Zheng He at that time, which made other countries realize the benefits of this kind of tea, and then called it China Precious Tea.