Dried LongAn, Dragon Eyes Fruit -龍眼肉桂圆肉 Longan can be eaten fresh, canned, dried. For dried longan, it can be use in desserts, or sauces, tea or soup. Longan is rich of vitamin C. And approximately 3.5oz will have 84 milligrams of vitamin c. Store in a refrigerator can preserve the life of dried longan.