Certified gluten-free. Non GMO Project verified. nongmoproject.org. Made with ocean minerals. Authentic Japanese-style. What is Nigari? Nigari is a firming agent that comes from ocean minerals (magnesium chloride). It is used to naturally coagulate the soymilk we use to make our tofu. Althought modern tofu is made using a variety of different firming agents, Japanese tofu is made with Nigari. That's why our Mori-Nu Silken Nigari Tofu captures the subtle, sweet, delicate flavor that is unique to Japan. morinu.com. morinaga-usa.com. Connect with us. Instagram. Facebook. Twitter. For recipes and more, visit morinu.com. Tetra Pak: Tetra Brik Aseptic. Protects what's good. Proudly made in the USA.