Mitoku Umeboshi Plums are entirely handmade with great care, according to the traditional farmhouse method. Gathered in remote mountain orchards from trees that have never known chemicals, they have a wild quality, and are exceptionally potent and flavorful. The food that epitomizes the adage: "food is your best medicine." Umeboshi has been recognized by the Japanese as a powerful medicinal food for thousands of years, and is the highest known source of citric acid.