Naturally fermented, lightly filtered. Eden Organic Brown Rice Vinegar is made an ancient way. A brew of rice, koji and spring water in earthenware crocks is buried in the Earth for 6 to 8 months. This sweet vinegar enhances almost any food and is essential to sushi. To protect its integrity and nutrients, we bottle it in protective brown glass. Acidity is 4.4 %. OCIA certified organic. Product of Japan.