It is impossible to determine which color of brown cotyledons is better, because the preference for choosing the color of zongzi leaves varies from person to person. Some people like the fresh taste of green leaves, while others prefer the unique flavor of yellow leaves.

From the point of view of food safety, it is suggested to choose zongzi leaves with natural color and no odor. If the leaves of Zongzi are too bright, they may be chemically treated. It is recommended not to buy it.

In addition, industrial chemicals, such as copper sulfate and copper chloride, will be added to the leaves of Zongzi in some areas to achieve the effect of "turning green". This kind of zongzi leaves may smell of sulfur when cooked, which is not good for your health. Therefore, when buying Zongye, it is recommended to choose formal channels and buy guaranteed products.