Tofu Coagulant: NigariDried, refined Japanese Nigari tofu coagulant. Each pound of Nigari is enough to make over 100 lbs of tofu! Nigari is also called 'bittern' or magnesium chloride. Nigari is said to make a tofu with a softer, smoother texture. Japanese Nigari Tofu Coagulant Also Called: Bittern or Magnesium Chloride Includes: 12 or 24 Oz. of dried, refined, food grade japanese nigari Nigari is the mineral salt residue left over when table salt is extracted from sea