Black salt (or Thursday salt) is made in Kostroma region of Russia. Black salt from Kostroma is made by burning ordinary salt with rye flour, according to the old recipe, with the preservation of classical technology. Please learn more about it in this article.
It is natural, environmentally friendly product without synthetic additives, rich in micro elements (K, Ca, Mg, I, Cu).
After burning, the amount of harmful impurities like heavy metals and excessive chlorine is reduced in black salt. Black salt regulates digestion, does not hold water so much in the body. Carbon in the form of fine coal removes toxins from the body.
Black salt has its own unique taste. It is good to put it in all dishes, instead of ordinary white salt.