Conger eel is a big sea fish belonging to the Congridi family, characterized by an elongated body, such as that of a snake. Cylindrical in the front and laterally compressed in the rear, conger has a blackish or gray-hazel skin, without scales, covered with a viscous substance. It ranges from 50 cm to 3 meters in length and from 5 to 50 kilos and lives preferably along cliffs or in sandy bottoms, up to a thousand meters deep. It has tasty and firm flesh with a characteristic flavour, especially suitable for stewing and prolonged cooking. However, it is not suitable for short cooking like on the grill or in a pan. Moreover, conger is excellent for fish soups.