In the 1980s and 1990s, most families still ate crude salt. Refined salt belongs to modern technology and needs to be filtered and refined into refined salt by chemical means. Refined salt, also known as processed salt, is formed by removing various elements from raw salt through various processing means.

Salt. No matter where and what taste, salt is essential in condiments. Salt should increase the salty taste of food and enhance the taste of vegetables. There are refined salt and coarse salt.

The salt we eat in our life is the salt dried by seawater, which is refined into salt by evaporation and liquid evaporation technology. There are also some salt ponds, salt wells and salt crystals. It can be made into the salt we usually eat. There are many elements in salt, which is good for our human growth. The salt we eat now is iodized, in order to avoid the occurrence of thyroid. Salt is easily decomposed by moisture in the air, so we should pay attention to the preservation of salt at ordinary times.

Second, the difference between refined salt and crude salt

1. Different tastes. Fine salt tastes pure and coarse salt tastes astringent; Fine salt tastes clean, while coarse salt will have a faint smell of seawater.

2. The appearance is different. Fine salt is fine, and coarse salt particles are large;

3. Different ingredients. Refined salt is made of coarse salt. However, many elements are removed during the processing. In order to prevent people in some areas from taking too little iodine, iodine is added to the salt now sold. The raw salt contains many elements of magnesium, potassium and calcium.