When was the first frost?

One solar term after another, we can easily find out what the next one is, because the 24 solar terms have a fixed order and a fixed time period? After the solar term, the cold dew is the first frost, and the cold dew is at 10, so when is the first frost? When is the first frost usually? If you want to know the time of the first frost, please see my introduction.

When was the first frost?

The first frost usually occurs on the 22nd to 24th of 10 in Gregorian calendar, and when the sun reaches the longitude of 2 10. As the last solar term in autumn, the first frost is the transition from autumn to winter. It will get cold, so you can't wear clothes naked.

What season is the first frost? Autumn.

The first frost solar term means that the weather is getting colder and the first frost appears. It is the last solar term in autumn and also means the beginning of winter. Health care is particularly important in the first frost season. There is a folk proverb that "it is better to make up the first frost one year", which shows the influence of this solar term on us.

The first frost is the last solar term in autumn, which is the transition from autumn to winter. There is a lot of heat dissipation on the ground in autumn, and the temperature suddenly drops below 0 degrees. Water vapor in the air directly condenses on the ground or plants to form fine ice needles, and some become hexagonal frost flowers, which are white and loose in structure. Frost can only form on sunny days. People say that "thick frost is bad for the sun" is the truth.

The solar term of the first frost means that the weather is getting colder and first frost begins. The average temperature in the northeast, eastern Inner Mongolia and most of the northwest has been below 0℃, the soil has frozen, and the winter crops have stopped growing and entered the wintering period. To the south of latitude, the average temperature is around 16℃, and there are two or three solar terms before the first frost day. In the southern valley of South China, frost can only be seen in the dead of winter.

Customs of the first frost: eat persimmons in the first frost.

The first frost is the last solar term in autumn. At this time, many areas in the south have the custom of eating persimmons. As the saying goes, "eating persimmons in the first frost does not cause a runny nose." People think that eating persimmons in the first frost will prevent them from catching a cold and running nose in winter. In fact, persimmons are fully mature before and after the first frost. Persimmons in this festival are thin and fleshy, delicious and nutritious, and are deeply loved by people. Therefore, the custom of eating persimmons in the first frost season was formed. When the persimmon is ripe in the first frost, some parts of our country have the custom of eating persimmon in the first frost. At this time, the weather turns cold, and people think that eating persimmons can not only prevent cold and keep warm, but also tonify bones and muscles, which is very suitable for the first frost season. For example, there is a saying in southern Fujian that "it is better to make up the first frost in one year". People think that if you eat persimmons at this time, you won't catch a cold or have a runny nose in winter.

Some places think that eating persimmons at this time can prevent chapped lips in winter.

Chinese medicine believes that persimmon is sweet, astringent and cold, belonging to lung meridian. Li Shizhen's Compendium of Materia Medica records that persimmon is the fruit of spleen, lung and blood. Its taste is sweet, astringent and acceptable. Therefore, it has the functions of strengthening the spleen and astringing the intestines, treating cough and stopping bleeding. "That is to say, persimmon has the functions of clearing away heat and dampness, moistening the lungs and resolving phlegm, quenching thirst and promoting fluid production, strengthening the spleen and stopping dysentery, and stopping bleeding. Therefore, persimmon is a natural health food for patients with chronic bronchitis, hypertension, arteriosclerosis and internal and external hemorrhoids.

There are many kinds of persimmons, about 1000, which can be divided into astringent persimmons and sweet persimmons according to whether the fruit is naturally astringent before it matures on the tree. In addition to fresh food, people also dry persimmons whole and make them into dried persimmons. Persimmons are covered with a layer of white powder called persimmon cream. Persimmon cream is not starch, but mainly crystals condensed from glucose oozing from the inside. It is the essence of persimmon, so don't remove it when eating. Persimmon has the functions of astringing intestine, moistening lung, stopping bleeding and harmonizing stomach. Suitable for people with normal digestive function of spleen and stomach.

It should be noted here that because persimmon contains more boots acid and pectin, it is easy to form lumps of different sizes under the action of gastric acid when eaten on an empty stomach. The lump grows bigger and bigger, and if it can't reach the small intestine, it will stay in the stomach and form a stomach persimmon stone. If it cannot be discharged, it will cause digestive tract obstruction, severe pain in the upper abdomen, vomiting and even hematemesis, which is called "stomach persimmon disease" in medicine.

So persimmons should not be eaten on an empty stomach.