Clearspring Organic Umeboshi are tart, tangy, salt pickled ume plums that have long been a vital part of Japanese cuisine and folk medicine. Small pieces add zest to sushi and rice balls and can be rubbed onto cooked sweetcorn or used in other dishes. Taken alone, umeboshi flesh has been traditionally used as a digestive tonic. Umeboshi are a concentrated food and only a small amount is needed.