Black salt is also known as Kala namak. It is a special type of Indian mineral salt with a distinctive/sulfurous flavor. Black salt or Kala Namak is not black, but more a reddish-gray, because of the presence of trace minerals and iron. It is not interchangeable with sea salt or table salt because of its distinct flavor. Country of Origin: India Product Weight: 100g, 400g Storage Instructions: Keep in Cool & Dry Place Package: Packet