Salt is one of the indispensable foods in people's daily life. Each person needs 6-10 grams of salt every day to maintain the normal activity of the human heart, maintain normal osmotic pressure and acid-base balance in the body. At the same time, salt is the carrier of salty taste and is the most widely used condiment. It is known as the "ancestor (King) of 100 flavors". Adding salt can not only increase the taste of dishes, but also promote the secretion of gastric digestive juice and increase appetite.

China is rich in salt resources, with salt producing areas all over the country and large output, which can not only fully meet the needs of domestic people's lives, but also organize exports. The salt produced in China mainly includes sea salt, well salt, pool salt, mineral salt, etc. Quartz sand color sorter

According to the degree of processing, table salt can be divided into raw salt (crude salt), washing salt and remanufactured salt (refined salt). Raw salt is a salt crystal directly prepared from seawater and salt well water. In addition to sodium chloride, it also contains impurities such as potassium chloride, magnesium chloride, calcium sulfate, sodium sulfate and a certain amount of water, so it has a bitter taste; Washing salt is a product that is washed with raw salt (mainly sea salt) and saturated salt water; Dissolve the original salt to make a saturated solution, remove impurities, and then evaporate. The salt thus prepared is re salt. The RE salt has less impurities, higher quality, powdery grains and white color, and is mostly used for cooking in the catering industry; In addition, there is artificial iodized salt, which is used for diet in some iodine deficient places.

Salt nutrition analysis:

1. Salt seasoning can relieve the greasy taste, improve the freshness, eliminate the fishy smell, and maintain the original taste of raw materials;

2. Salt water has the functions of sterilization, preservation and anti-corrosion;

3. It is used to clean wounds and prevent infection;

4. Sprinkle it on food to keep it fresh for a short time, and it can also prevent deterioration when used to pickle food;

5. Using salt to adjust water can remove the cutin and dirt on the skin surface, make the skin appear a fresh, transparent and beautiful feeling, promote the metabolism of the whole skin, prevent some skin diseases, and play a better role in self-care.

Salt supplementary information:

1. The salt shall be stored in a cool, dark and airtight manner;

2. If you eat too much salt for a long time, it is easy to cause hypertension, arteriosclerosis, myocardial infarction, stroke, kidney disease and cataract;

3. Although eating more salt is harmful to health, and the diet should be light, it is not the case that eating less salt is better;

4. In addition to food, salt can also be used as a preservative to preserve food with its strong permeability and bactericidal effect;

5. Salt is also widely used in industry and is an important industrial raw material;

6. Salt is used to induce vomiting and should be taken after being fried and dissolved; Hydrate eyes and wash sores.

Salt is suitable for people:

Edible to the general population

Patients with hypertension, kidney disease, cataract and children should not eat too much, and those with edema should avoid eating.

Effect of salt diet: salt tastes salty and tastes cold. It enters the stomach, kidney, large intestine and small intestine;

Salt has the effects of tonifying the heart and moistening dryness, purging heat and defecating, detoxifying and inducing vomiting, nourishing yin and cooling blood, relieving swelling and pain, and relieving itching;

It mainly cures epigastric symptoms, abdominal distension and pain, sputum addiction in the chest, constipation, gingival bleeding, sore throat, toothache, eye pannus, sores, poisonous insect stings, etc.