Ủ Tự Nhiên 120 Ngày is a naturally fermented soy sauce from the Vietnamese brand CHIN-SU. It is produced by Masan Consumer using carefully selected soybeans. The main ingredient undergoes controlled fermentation and maturation for 120 days. During this process, the soybean components gradually break down and develop the aromatic compounds responsible for the sauce’s umami character. Its four-month maturation is longer than the process used for many standard industrial soy sauces but considerably shorter than the aging period of multi-year tamari. The finished product has a dark brown color, a pronounced fermented soybean aroma and a full-bodied texture. Its flavor is layered and moderately salty with mild sweetness in the finish. The sauce is formulated so that neither its saltiness nor its fermented aroma overwhelms the food. It can be served directly as a dipping sauce with vegetables, rice, noodles, tofu, fish and seafood dishes.