A Swordfish is a food item that can be created by using a Raw swordfish on a range or fire with level 45 Cooking or higher, granting 140 experience. Players stop burning swordfish at 86 cooking, or 81 with Cooking gauntlets. They are prized by wealthier players because when eaten, swordfish heal 14 hp. Their high healing ability and the difficulty in catching them make them a fairly expensive food item, but wealthier players sometimes may use swordfish to PK with if they cannot afford sharks but want to heal more than lobsters.
It is recommended that players only cook swordfish with a cooking level of at least 67 where the burn rate is about 20% whereas the burn rate at level 45 is around 80%.