Pure refined rock salt is generally table salt, which can be used and eaten.

The most common type of rock salt is "Himalayan rock salt," which costs a hefty 1,080 yen per kilogram (1 yen = 0.06 yuan), while the same weight of regular table salt sells for only 312 yen.

In addition, many merchants in order to raise prices or eye-catching, have introduced fancy salt, such as a mixture of fruits, spices, such as yuzu salt, pepper salt, rosemary salt, garlic salt, etc.; a product called "delicious salt," 300 grams of 3,000 yen, but in fact, it is nothing more than a specially processed natural sea salt. It's just natural sea salt that has been specially processed.

Role of salt:

Salt is a common seasoning in daily life, and its main ingredient is sodium chloride. Its role has anti-inflammatory and sterilization, clean up stomach fire, participate in the metabolism of body fluids, replenish the body salt and so on.

Salt can maintain the body's osmotic pressure and acid-base balance, but also maintain the normal excitability of the nerves and muscles, to maintain good health. Getting up in the morning and drinking a glass of light salt water on an empty stomach can clean up intestinal heat, remove bad breath, and promote digestive function. Salt has antiseptic and decongestive effects, which can effectively remove acne; it can also be used to clean and disinfect, and is often used to remove the toxins of snakes, insects and scorpions hidden on the skin of fruits.

Salt also has the effect of anti-inflammatory and sterilization, gargling with salt can play a role in clearing away heat and anti-inflammatory, alleviating the role of toothache. Salt is an important component of body fluids, high summer temperatures, the body's salt loss is serious, high-temperature work people should drink more salt-containing beverages.