General use of the oven to bake leeks temperature are controlled at about 180 degrees, the time is about 3-5 minutes can be. The main nutrients of leeks are vitamin C, vitamin B1, vitamin B2, niacin, carotene, carbohydrates and minerals. Leeks are also rich in fiber, every 100 grams of leeks contain 1.5 grams of fiber, higher than onions and celery, can promote intestinal peristalsis.