Eden® Selected Ume Plum Vinegar. Naturally fermented. Lightly filtered. Eden® Ume Plum Vinegar is brine from umeboshi (pickled ume plums and shiso aka beefsteak leaf). Its array of rare healthy organic acids, tangy flavor and salt livens up dips, soups, dressings, marinades, greens, vegetables, pickles... recipes on the web site. Acidity 4.3%. edenfoods.com. ©2013 Eden Foods.