I believe many people eat more sea salt. In addition, these salts may be unheard of. Since it can be bought in the market, it shows that it meets the national salt standard, and we can all eat it. Before buying, we must know the source of these salts. Today, I will talk to you about sea salt, rock salt, well salt and lake salt. I hope you don't buy the wrong one again after you know it.
The modern method of making sea salt from sea salt is very simple. We will dig a salt pan by the sea, and then pour the seawater into the salt pan. After natural sunlight, seawater gradually evaporates, and the salt content keeps rising, becoming brine. At this time, the brine is introduced into the crystallization pool and becomes salt after natural crystallization.
Rock salt can be found in underground strata through professional detection. Then dig a hole and inject water into the ground, so that the salt in the rock salt layer is fully dissolved in the water and becomes brine. Then the brine is pumped up and evaporated to obtain "rock salt".
Well salt groundwater or underground river flows through salt mine, which naturally dissolves salt and becomes natural brine. We extract these brines from the ground by drilling and get "well salt" after evaporation.
Lake salt lake, as its name implies, is produced in salt lake. Salt Lake, with a salt content of about 30%, is a huge natural brine pool. You can get salt by drying the lake water. In Qinghai Province, China, there is a salt lake which is the largest in China and the second largest in the world. It is Chaerhan Salt Lake, with a total salt storage of 60 billion tons, enough for the global population to eat 1000 years.
To sum up, one of the differences between sea salt, rock salt, well salt and lake salt is that the mining sources are different.
What's the difference between different sources of salt? Most people have the same taste for sea salt, rock salt, well salt and lake salt-salty. However, some people with sensitive taste can taste the difference between these four kinds of salt. More than 97% of the salt is sodium chloride, and the remaining 3% of other substances play a role in the taste. Therefore, when we eat sea salt, we will feel the "taste of the ocean", and when we eat well salt, we will taste the "taste of well water". In addition, the purity of sea salt, rock salt, well salt, lake salt and sodium chloride is the same, and the difference can be ignored. You don't have to worry about which salt to choose. In order to increase sales, some merchants use advertising marketing to package salt. Will we be misled?
Why eat refined salt? No matter where salt is mined, it is only raw salt. Because it contains some other impurities, some impurities are not conducive to human absorption, and some impurities are not conducive to health, so it is not recommended for everyone to eat. Refined salt will remove harmful impurities and further increase the content of sodium chloride. According to the national salt standard, sodium chloride can only be called "salt" if its initial degree exceeds 97%.
Some people say that crude salt is healthier and richer in minerals than refined salt. When we fry rice and cook, we only add a small amount of salt at a time, so there are few minerals absorbed from salt. Fresh fruits and vegetables, meat and eggs are the main sources of minerals.
How much salt should we eat every day? The World Health Organization recommends that adults consume 5 grams of salt every day. Intuitively speaking, it means no more than a spoonful. However, according to a survey, the average daily salt intake of urban and rural residents in China has reached 12g. So try to eat less salt and light diet in the future, which is good for your health.