1. Bailu solar term is September 7th. White dew is an important season that reflects the temperature changes in nature. It basically ends the sultry heat of summer and is the turning point from sultry heat to coolness in autumn. The ancients matched the four seasons with the five elements. Autumn belongs to gold, and gold is white, so white is used to describe autumn dew. After entering the Bailu solar term, the summer monsoon is gradually replaced by the winter monsoon, and the cold air moves south in batches, often bringing about a certain range of cooling.

2. After the white dew, the sky is high and the clouds are light, the air is cool and the wind is cool. The temperature difference between day and night is large. You will feel a little bit of coolness at night, and you can clearly feel the arrival of cool autumn. According to the interpretation of "white dew" in "The Collection of Seventy-Two Hours of the Moon Order" - "Water, earth, and moisture condense into dew. Autumn belongs to gold, and gold is white. White means the color of dew, and the air begins to get cold." "White dew" represents the end of the heat of summer. All things gradually wither and mature as the cold grows. In the process of seasonal transformation, the harvest of autumn brings people health-related foods and folk customs.