Cast-iron cookware From Wikipedia, the free encyclopedia Jump to navigation Jump to search A cast-iron skillet Cast-iron cookware is valued for its heat retention properties and can be produced and formed with a relatively low level of technology. Seasoning is used to protect bare cast iron from rust and to create a non-stick surface . Types of bare cast-iron cookware include panini presses , waffle irons , crepe makers , dutch ovens , frying pans , deep fryers , tetsubin , woks , potjies , kar...