The full moon banquet 19 eggs may be just a local custom, and there is no specific scientific basis. In the full moon banquet, eggs are an important traditional food, which is usually used to entertain relatives and friends and express blessings and prayers. However, in real life, the number and significance of eggs may vary according to regions and family habits, and there is no fixed regulation. Therefore, putting 19 eggs at the full moon banquet may be just one of the choices, and it has no special significance.