Made from high-purity pig iron using traditional sand-casting techniques, this cast iron skillet features a thick, dense body with excellent heat retention. It comes pre-seasoned with 100% natural vegetable oil and contains no synthetic chemical coatings, making it ready for immediate use; the non-stick performance improves with continued use over time. Made from cast iron, this cookware is naturally free of PFOA and PTFE, ensuring safety and health. The surface is finely polished for a smooth finish and offers even heat distribution. Withstanding temperatures up to 500°F, it is suitable for various heat sources—including gas stoves, induction cooktops, ovens, grills, and even campfires—and excels at searing, stir-frying, roasting, baking, and stewing. For daily maintenance, wipe the pan dry after cleaning and apply a thin layer of vegetable oil to reinforce the seasoning; new pans can be seasoned by baking with oil at low temperatures two or three times to strengthen the non-stick layer. Avoid cooking acidic foods (such as tomato sauce or vinegar) initially to protect the seasoning. This cast iron set is an ideal choice for those who value traditional cooking flavors and long-lasting durability.