Zongzi, also known as rice dumplings, is a kind of rice dumpling, also known as "dumpling" and "tube rice dumpling". Wrap glutinous rice with rice dumpling leaves and steam it. It is one of the traditional festival foods of the Chinese nation. Zongzi appeared before the Spring and Autumn Period. It was originally used to worship ancestors and gods. In the Jin Dynasty, rice dumplings became the food of the Dragon Boat Festival. The custom of eating rice dumplings has been popular in China for thousands of years and has spread to South Korea, Japan and Southeast Asia.

It is said that eating rice dumplings is to commemorate Qu Yuan, and it is said to be passed down in memory of Qu Yuan who threw himself into the river. Zongzi, as one of the most profound traditional foods in Chinese history and culture, still has a long way to spread. In Japan, Vietnam, Singapore, Malaysia, Myanmar and other places where Chinese people live together, there is also the custom of eating rice dumplings. There are many kinds of zongzi. From the perspective of fillings, the north has Beijing date rice dumplings, mung beans, pork belly, bean paste, Bazhen, ham, mushrooms, egg yolk and other fillings, among which Guangdong bacon rice dumplings and Zhejiang Jiaxing rice dumplings are the representatives. The custom of eating rice dumplings. For thousands of years, during the Dragon Boat Festival, which falls on the fifth day of the fifth lunar month, Chinese people have soaked glutinous rice, washed rice dumpling leaves, and made rice dumplings. In 2012, Zongzi was selected as one of the delicacies in the second episode of the documentary "A Bite of China".

In the past, people thought that zongzi was made of hemp leaves, but it was actually made of palm trees. The sound of the rice dumplings comes from the palm leaves. Because the rope-tied rice dumplings are a long strip torn from a palm leaf, they are characterized by being cooked thicker and thicker. It adopts authentic packaging method and has the fragrance of palm leaves. Zong leaves are reed leaves. Steamed rice dumplings are very fragrant. Zongye has the effects of clearing away heat and stopping bleeding, detoxifying and reducing swelling, hematemesis, bleeding, urination and carbuncle. In recent years, studies have proven that indole licorice polysaccharide has anti-cancer effects. The "Dictionary of Traditional Chinese Medicine" also introduces that Zongye has the effects of clearing heat and stopping bleeding, reducing swelling, vomiting blood, difficulty urinating, laryngeal numbness, and carbuncle.

There are many natural materials for wrapping rice dumplings, such as wrapping rice dumplings with straw, using cotton rope or hemp rope to wrap rice dumplings. Cotton and hemp ropes are sold in general stores. Therefore, both businesses and families should try to use natural materials for packaging leaves and ropes, so that the rice dumplings can be eaten safely and reassuringly. Most of them are rice dumplings wrapped with nylon rope and plastic rope. Xiao Bian reminds you not to use wool to make rice dumplings, as it is easy to fade and may contain toxins. You can use cotton thread, which is more natural.

Nylon rope, also known as polyester vinyl rope, will produce toxic substances to human health after being boiled at high temperatures, such as dimethylmethane and other toxins. Toxins can seep into boiling water and rice dumplings. Eating rice dumplings contaminated with toxins will cause poisoning. Plastic ropes are generally made of polypropylene PP plastic and also made of polyethylene PE material. We call it polypropylene plastic rope, binding rope, or polyethylene plastic rope. Plastic and nylon ropes were originally used to tie items, not food. That is, they are not suitable for eating. If it is just used to temporarily bind the outer packaging of some foods, there is no problem. But they are heated and cooked directly in the pot. When they are heated, various toxins seep into the food and can be very harmful. When the temperature exceeds 50 degrees, the toxic components in the plastic rope will be separated, contaminating food and causing harm to the human body. If people eat dumplings tied with nylon ropes and plastic ropes, the light dumplings will cause slight gastrointestinal discomfort. Severe cases can cause food poisoning (gastroenterology emergency department), dizziness, nausea, vomiting, diarrhea (gastroenterology) and other symptoms.