Naturally fermented. Lightly filtered. Eden Ume Plum Vinegar or ume su is brine from umeboshi (pickled ume plums and shisho aka beef-steak leaf). Its array of rare healthy organic acids, tangy flavor and salt livens up dips, soups, dressings, marinades, greens, vegetables, pickles. Amber glass protects its integrity and nutrients. It is still made the ancient skillful way preserving the traditions necessary for its continued availability. Acidity 4.3%. Product of Japan.