Our jumbo cooker is made using top rated material 3003 aluminium alloy which is used for professional grade frying pans;Bakelite handles offer heat safe comfort grip and handles retain shape and resist scratching over time;2 layer non-stick interior is exceptionally durable and scratch resistant making it safe for use with metal utensils;Spiral bottom can be used all the cooking surface except for induction cooker;Dishwasher safe and oven safe up to 350 degrees fahrenheit