Saying one: Dragon Boat Festival is a sacrifice to the ground, water, must be sacrificed with feminine offerings, bird paws for the four-clawed, even number, according to the concept of classification of the ancients, even-clawed animals belong to the yin animals, and furthermore, the duck is a water animal, the animals in the water generally regarded as a yin animal.
Sayings two: Dragon Boat Festival in addition to commemorate Qu Yuan there is to avoid the five poisons, because the legend of the five poisonous monsters to the Dragon Boat Festival will be harmful to the earth, the five poisonous monsters are snakes, centipedes, spiders, geckos and scorpions, the folk with five kinds of red dishes to symbolize the blood of these five poisons, eating these dishes, it will be five poisons and monsters will be scared away, that is, to eat the five red, respectively, is a roasted duck, amaranth, red oil duck eggs, Lobster, and Xionghuang wine. It is said that when you eat these five reds at the Dragon Boat Festival, you will be able to ward off evil spirits and avoid the summer heat throughout the summer. Similar to the five red, Jiangnan folk Dragon Boat Festival and eat five yellow food customs. Five yellow refers to eel, yellow fish, cucumber, salted duck eggs and xionghuang wine.
Whether it is five red or five yellow, including duck eggs, so the Dragon Boat Festival to eat duck eggs have a reason to ward off the summer heat. As the saying goes, "you have to eat salted egg dumplings to send the cold". Because the Dragon Boat Festival heralds the imminent arrival of the hot summer, plant and animal life activities into the peak stage, coupled with the humid climate, pests and bacteria are active, prone to cause many diseases. In ancient times, May was regarded as a "poisonous month", "evil month", the spread of plague sores, the first five days of May is the first of the nine poisons. And the egg is shaped like a heart, eat the egg can make the heart spirit is not loss.
In the past, the Dragon Boat Festival to eat eggs are generally salted duck eggs, the reason why to eat salted duck eggs, there are also some say.