The origin of summer heat and solar terms
Great summer heat is one of the 24 solar terms. Every year between July 22nd and 24th, the sun reaches 120 degrees. Summer solar terms also belong to the mid-festival stage, which is the hottest stage every year.
Ancient Chinese records that "in mid-June, slight summer heat can be seen" and "fifteen days after slight summer heat" means non-great summer heat, and it is in mid-June. The small ones and the big ones are extremely hot, and they are divided into sizes. It was small at first, and it became big after reading it. " Therefore, many ancient books in China have talked about the solar terms in summer. The ancient summer heat in China is divided into three periods: "Rotten grass is firefly; Second, wait for the soil to moisten and cool off the heat; It will be fine when it rains. " There are more than 2000 species of fireflies in the world, which are divided into aquatic and terrestrial species. Terrestrial fireflies lay eggs on hay, and when it is hot, fireflies ovulate, so the ancients thought fireflies were made of rotten grass. The second weather is that the weather becomes sultry and the land is wet. The third kind of weather is frequent thunderstorm, which weakens the heat and humidity, and the weather begins to transition to beginning of autumn.
I believe everyone knows that it is hot in the dog days. Summer heat is generally in the middle of three volts. At this time, most parts of China are in the hottest stage of the year, and the temperature difference across the country is not large. Isn't there a proverb: "Cold is in March 9th, heat is in the middle." Summer is hotter than summer. According to the statistics of the extreme maximum temperature in August in China Surface Climate Data (197 1 ~ 2000), it can be seen that the extreme maximum temperature in July in some provinces appeared in late July, and in most provinces it appeared in early August, just in the summer of July and August of the following year.
The summer heat is also the season with the most thunderstorms. As the saying goes, "there is no drop in the east, and there will be rain in the west", which means that in summer, if there is lightning in the east, it will not rain generally, but if there is lightning in the west, it will rain soon.
Summer solar terms custom activities
Boiled mutton wine
That is, "eat mutton and drink soju" in the dog days, "eat soup and cakes in the sun, wipe your sweat with a towel and look charming." The soup cake here is steaming mutton noodles. Even today, it is still very popular in Fengxian, Jinshan and Minhang in Shanghai. This is based on the theory of traditional Chinese medicine, which holds that people should adapt to the change of summer weather, and nourishing the yang should focus on nourishing the heart, which can not only supplement nutrition, but also strengthen the heart by drinking more milk, eating more soy products, chicken and lean meat. Yang-heat qi of the heart not only maintains its own physiological function, but also has a warming effect on the whole body. Water-liquid metabolism and sweat regulation of human body are inseparable from the important role of kaiyang.
Eat "Cao Xian" in summer.
In southern Guangdong and Hong Kong, there is a custom of "eating fairy grass" in summer. Cao Xian, also known as Xiancao and Cao Xian, is an important medicinal and edible plant resource. It is known as "Cao Xian" because of its magical effect of relieving summer heat. After the stems and leaves are dried in the sun, they can be made into fairy grass, which is called bean jelly in Guangdong and is a summer dessert. Folk proverb: if you eat fairy grass in the midsummer of June, you will live like a fairy and never get old. Chiffodil is one of the famous snacks in Taiwan Province Province. You can eat it cold or hot. The appearance and taste of Xiancao is similar to another popular snack in Guangdong, Hong Kong and Macao, and it also has the effect of clearing away heat and toxic materials. But this kind of food is taboo for pregnant women.
Send a "summer boat"
This is a traditional folk custom in Zhejiang coastal areas, especially in many fishing villages in Taizhou. Its significance is to send the "five saints" out of the sea and protect people from the heat. When sending the "Summer Boat", a series of blessing ceremonies were held, accompanied by colorful folk art performances. Subsequently, this "summer boat" was dragged out of the fishing port by fishing boats, and then lit on the sea to let it rise and fall, in order to wish people a bumper harvest and a healthy life.
Eat litchi to relieve summer heat
People in Putian, Fujian have the custom of eating litchi, mutton and rice grains during the summer heat, which is called "passing the summer heat". Litchi contains glucose and multivitamins, and it is nutritious. Eating fresh litchi can nourish the body. First, soak the fresh litchi in the cold well water and take it out to taste as soon as summer arrives. At this time, eating litchi is the most pleasant and nourishing. So some people say that eating lychee in summer is as high as eating ginseng.
Misha
In some places, rice and white rice koji are mixed and fermented to ripen thoroughly; In summer, cut into pieces and add some brown sugar to cook.
The principle of hot diet in summer
1, eat fruit every day.
Fruit is an important source of vitamin C, carotene, B vitamins, potassium, magnesium and dietary fiber. Different fruits have different nutritional contents, so add carotene and choose red and yellow fruits such as mango, citrus, papaya and hawthorn. Jujube, orange, grapefruit, kiwifruit and other fruits have high vitamin C content. Banana, jujube, red fruit and longan have higher potassium content.
In addition, fruit contains organic acids such as fruit acid, citric acid and malic acid, which can promote the secretion of digestive juice, stimulate appetite and help digestion.
2, often eat fresh beans.
There are many kinds of fresh beans in summer, including cowpea, edamame, mung bean, broad bean, lentil and Dutch bean. Fresh beans are comprehensive in nutrition and varied in eating methods. Soybeans and broad beans can be cooked and eaten directly, and cowpeas can be cooked with cold dishes such as sesame sauce.
3. Drink more soup and replenish water.
You can prepare mung bean soup, sour plum soup and so on. At home, you can also cook dry rice, winter melon soup and lotus root sparerib soup.
4. Eat dark vegetables every day.
The colors of vegetables are deep and light, and the nutritional value of dark vegetables is generally better than that of light vegetables. Dark vegetables are rich in carotene, chlorophyll, lutein, lycopene, anthocyanins and other healthy substances. Spinach, celery leaves, water spinach, broccoli, watercress, chrysanthemum, tomato, carrot, pumpkin, red amaranth, purple cabbage, etc.
According to the taste and color of vegetables, we can make vegetable salad with tomatoes, kale and carrots, which is rich in color and unique in taste, promotes appetite and supplements vitamins, minerals, dietary fiber and phytochemicals.