Why are there so many types of salt? What are the types of salt?

We eat more iodized salt every day. Iodized salt contains iodine to prevent hyperthyroidism, also known as "Great Neck Disease".

Sea salt is healthier.

However, most people use iodized salt.

The types of <> salt include sea salt, well salt, mineral salt, lake salt, and soil salt. Their main ingredient is sodium chloride.

The state stipulates that the sodium chloride content of well salt and mineral salt shall not be less than 95%. Table salt contains impurities such as barium salts, chloride, magnesium, lead, arsenic, zinc, sulfate, etc.

1. Sea salt: Sea salt is salt made from seawater (some in the north use underground brine) as raw materials. Seawater enters the evaporation pond through the tide, is evaporated and concentrated into saturated brine by solar evaporation, and continues to evaporate and crystallize in the crystallization pond, and then collects salt manually or mechanically, and piles up to complete production.

Sea salt is low in sodium chloride and contains a variety of trace elements required by the human body.

No anti-caking agent is added.

2. Well salt: The salt made by pumping underground brine by drilling wells is called well salt.

3. Mineral salt: Mineral salt, as the name suggests, is the salt mined from the salt mine, like the rock salt in the desert, Sichuan salt in Sichuan, and Poland.

Mineral salt, mined hundreds of meters underground, is rich in minerals.

4. Lake salt: Lake salt generally refers to green salt. Green salt, which is the salt crystal of halide stone salt group lake, is the salt directly extracted from the salt lake and the salt lake brine is used as raw material in the salt pan.

Medium-dried salt. It mainly contains sodium chloride, and contains trace elements such as silicon, iron, aluminum, and macro elements calcium and magnesium, and a small amount of trace elements manganese, titanium and strontium.

5. Earth salt: Qing Dynasty in Shaanxi and Zhili.

Xuanhua, Xining County, Taiyuan, Shanxi.

The salt produced in Xugou County and Gaolan County in Gansu Province is only sold locally and is called soil salt. Subsequently, the salt produced in the Mongolian flag was also sold in the area of Shanxi salt consumption.

The types of salt are: refined salt, large-grain sea salt, smoked sea salt, etc.

1. Refined salt

Refined salt is the most commonly used salt in daily cooking, not because of its fine particles, but because it has been refined and purified. It could be sea salt, well salt, lake salt, or, most likely, rock salt. In fact, about 40% of the salt that people eat on their tables today comes from rock salt mined from salt mines, and 30% from underground brine or well salt made from salt lakes.

2. Large sea salt

Bulk sea salts are not as heavily processed as refined table salts, so they retain more trace elements. Sea salt is divided into coarse salt, fine salt, and flake salt. Depending on the origin and the minerals it contains, sea salt comes in a variety of colors, including white, pink, black, grey and a mixture.

Pure sea salt has a delicate flavor and a subtle sweetness when tasted. In addition to seasoning, large grains of sea salt can also be used for salting.

3. Smoked sea salt

Smoked sea salt is a processed salt that comes in a very strong style. This salt is smoked over charcoal, so foods cooked with it tend to have a smoky aroma, adding a smoky aroma to ordinary tofu and eggs, and is also suitable for pairing with fried and smoked dishes.

How is salt made?

1. The production method of edible salt is relatively simple, and the general methods used are mainly tide, halogenation, crystallization, salt collection and salt washing.

2. Although the method of making food disturbance town salt is a bit simple, it also requires a strong labor force. First of all, the water in the salt pan is directed to the salt pan by the water raised by the tide, and then exposed to the sun, and the sea water in the salt pan is evaporated through a strong gentle posture of the sun, and when it reaches a certain level, the concentration will crystallize, and the coarse salt will be obtained after a simple production.

3. The coarse salt obtained after evaporation is dissolved, precipitated, filtered, and evaporated to obtain refined salt, and finally other elements are added according to the needs of the actual situation.

Edible salt is one of the most common condiments in life, the world is big, there are no wonders, usually eat iodized salt, the types of edible salt are actually very varied, so what are the classifications of salt?

1. Rock salt: The saltiness of rock salt is lower than that of sea salt, but the mineral and soil flavor will be heavier, and it can be maintained at a certain temperature for a long time.

2. Lake salt: Lake salt is the earliest edible salt discovered by human beings, and lake salt refers to the salt mined in the salt lake or the salt made from the brine of the salt lake. Generally, the raw salt is directly extracted from the salt lake by a salt miner or a salt mining ship, and the production is completed through transportation, washing, dewatering, stacking and other steps, and its salinity is relatively soft.

3. Well salt: Compared with sea salt, the taste of well salt is softer, after the entrance is the umami first, the salty taste comes very slowly, and after more than ten seconds, there is a little sweetness in the mouth. And pickled authentic Sichuan kimchi, it is indispensable to Zigongjing salt, and the crispness of the pickled kimchi is the best.

4. Kosher salt: Kosher salt is a special salt used to make kosher kosher, this salt is coarse, does not contain iodine, is not as easy to dissolve as refined table salt, because of its purity and no impurities, it is very suitable for cooking food.

Salt is divided into three types: normal salt, acid salt and alkaline salt. Normal salts such as NaCl, acid salts such as HCO3 and HSO4, and basic salts such as Cu2(OH)2CO3. According to the ions of the same part of the salt, it is called a certain type of salt.

Salts containing carbonate ions are called carbonates, salts containing sulfate ions are called sulfates, salts containing nitrate ions are called nitrates, salts containing iron ions are called iron salts, etc. According to the use, it is divided into industrial salt and edible salt, of which edible salt has coarse salt and fine salt. <

1. Salt is divided into three types: normal salt, acid salt and alkaline salt. Normal salts such as NaCl, acid salts such as HCO3 and HSO4, and basic salts such as Cu2(OH)2CO3.

2. According to the ions of the same part of the salt, it is called a certain type of salt. Salts containing carbonate ions are called carbonates, salts containing sulfate ions are called sulfates, salts containing nitrate ions are called nitrates, salts containing iron ions are called iron salts, etc.

3. According to the use, it is divided into industrial salt and edible salt, of which edible salt has coarse salt and fine salt.

The types of salt include raw salt, refined salt, low sodium salt, iodized salt, selenium salt, zinc salt, blood tonic salt, calcium salt, caries prevention salt, marine salt, etc.

The raw salt is made by using natural conditions, with a compact structure, grayish and white color, and a purity of about 94%. Refined salt is raw salt as raw material, using chemical salt brine purification, vacuum evaporation, dehydration, drying and other processes, the color is white, powdery, sodium chloride content is above, low sodium salt refers to the salt with low sodium content, ordinary salt, high sodium content, low potassium content, easy to cause imbalance of dietary sodium and potassium.

Selenium is also an essential trace element for the human body, and selenium is also an antidote to harmful heavy metals in the body. Animal liver, kidneys and seafood are all good for selenium, while the selenium content of plant foods is affected by the selenium content in the place of origin, water and soil, which varies greatly. Middle-aged and elderly people, patients with cardiovascular diseases, and people with small meals can choose to add selenium salt.

Table salt with a certain percentage of selenide added.

Other kinds of salt

Others, such as adding iron salts. Table salt with an iron content of about 8,000. It is usually obtained by adding an appropriate amount of ferrous sulfate and other iron fortifiers to table salt.

Added iron salts are used in patients with iron deficiency anemia. Formulated with iron fortifier and refined salt. Calcium-added salt is made of compounds that add calcium in proportion on the basis of ordinary iodized salt, which is suitable for various people who need calcium supplementation.

Common soluble salts are: KCL, K2SO4, K2CO3, KNO3, NaCl, Na2SO4, Na2CO3, etc.

Common insoluble salts are: baco3, caco3, baso3, caso3, etc.

There are three types of soluble salts: soluble salts, medium-soluble salts and insoluble salts. Soluble salts are chloride salts, carbonates and sulfates (Naci, KCI, Na2SO4, Na2CO3); Medium-soluble salt refers to gypsum (caso4); Insoluble salts refer to calcium carbonate (CaCO3).

The type and content of soluble salts are related to the diagenesis of loess, which affects the engineering performance of loess. When the soluble salt is solid, it has a cementing effect on soil particles; When it dissolves as ions existing in the soil, the cations in it are replaced with the cations adsorbed on the surface of the soil particles. These two different effects have a great impact on the engineering performance of loess.

The more the content of dissolved salt (CaSO4), the greater the collapsibility, not only that, because CaSO4 is mostly secondary crystals distributed in the pores of loess, when the chloride ion (NaCl, KCI) in the loess is dissolved, due to the large concentration, it can still accelerate the dissolution of CaSO4 and deteriorate the engineering properties of loess.

Insoluble salt (CaCO3) plays both a skeletal and a cementing role in loess. When calcium carbonate is distributed in the loess in the form of detritus, it is part of the skeleton of the soil; It acts as a cementation when it is distributed in a thin film or mixed with clay to form a polymer. Calcium carbonate, which plays a cementing role, has a significant effect on collapsibility.

For example, the calcium carbonate content of Lanzhou loess and Shaanxi Wugong loess is comparable (9% 14%), but the calcium carbonate of Lanzhou loess is more distributed in the form of debris and plays less cementing role, while Wugong loess has less debris and plays more cementing role. Therefore, the collapsibility of Lanzhou loess is greater than that of Wugong loess.

Salt is a common food condiment that comes in many different varieties. Here are some common types of salt:

1.Table salt: Table salt is the most common type of salt and is commonly used in cooking and seasoning. It is usually extracted from seawater or underground salt mines, processed, purified, and crystallized.

2.Coarse salt: Coarse salt is salt with large crystals that is usually not filtered or finely treated. It can be used for cooking, pickling, and baking.

3.Edible sea salt: Edible sea salt is salt extracted from seawater. It can be coarse salt or fine salt that has been finely processed. Edible sea salt usually contains some trace elements and therefore has some special tastes.

4.Rock Salt: Rock salt is salt extracted from underground salt mines. It is usually coarse salt, contains various mineral traces and trace elements, and therefore has a special taste.

5.Vegetable salt: Vegetable salt is a type of salt with vegetable powder added to it to add flavor to food. It is commonly used in cooking, stewing, and seasoning.

6.Low sodium salt: Low sodium salt is a salt with reduced sodium content and is suitable for those who need to limit their sodium intake. It is usually prepared by replacing part of the sodium ions for other minerals.

These are some of the common types of salt in Zixiao, and they all have different uses and flavors in both cooking and seasoning.

Sea salt is salt produced using seawater, which contains not only sodium chloride but also iodine. However, except in coastal areas, many people guess that they do not eat sea salt, but eat lake salt, earth salt, etc.

Lake salt is salt produced using lake water, which contains only sodium chloride and not iodine, but some lake salts are not suitable for consumption. For example, the salt from Qinghai Lake Conghui in Qinghai Province, China, is crystalline and contains mercury because it does not contain iodine, so the locals are prone to endemic goiter and kidney damage when consumed.

Soil salt is the salt produced in saline-alkali land, which contains only sodium chloride and not iodine, but some soil salt is also not suitable for consumption. For example, the Baidunzi Salt Farm in Jingtai County, Gansu Province, China, uses water to irrigate saline-alkali land, and then let the sun expose it to produce soil salt.

Because it does not contain iodine but magnesium chloride, locals are also prone to endemic goiter after consumption, and are just as prone to kidney damage.

Well salt is salt produced using well water, which contains only sodium chloride and not a little iodine. For example: Shengsui Zhengbang in Zigong City, Sichuan Province, China.