Watermelon frost has heat-clearing and detoxifying effects. In order to prevent the epidemic, it is strictly managed during the epidemic prevention period.
Watermelon frost is a white crystalline powder produced by processing the ripe fruit of watermelon, a cucurbitaceous plant, and Glauber's salt. It is also a traditional Chinese medicine. Its specific method is: take fresh watermelon and cut a thick slice along the stem. Make a top cover and dig out the pulp and seeds.
Fill the melon with Glauber's salt, cover it with a top cover, insert it firmly with a bamboo skewer, put it in a clay pot, cover it, and place it in a cool and ventilated place. When white frost precipitates, brush it off at any time until it is gone. The degree of white frost precipitation.
Origin
China's watermelon production areas are divided into two regions: north and south. Hainan Island is the main production area in the south. Hainan Island is rich in watermelons all year round due to its unique climate. In the north, Hubei (Hubei is located in the south of the Yangtze River Basin) is the main watermelon producing area, mainly concentrated in the Yicheng area of ??Xiangfan. The more famous places in Shandong for producing watermelons include Dongming in Heze, Changle in Weifang, Pingdu and Jimo in Qingdao. Others are planted in Hebei, Heilongjiang and other places.