While cast iron skillets take longer to heat up than other frying pan materials, they heat evenly and consistently with no hot spots. They are great at retaining heat and can be taken from the stovetop to the oven or grill and then to the table for service to keep the food warm. A well-seasoned cast-iron skillet is naturally non-stick and can withstand very high temperatures without warping or getting damaged. Cast iron requires frequent maintenance, but the benefit is that it can last a lifetime with routine seasoning and using proper cleaning techniques.