PRO IQ is hand-cast in 100% recycled aluminum with a steel plate cast into the bottom. PRO IQ's construction ensures perfect heat distribution and optimum base thickness maintains a consistent temperature while cooking. Features Stratanium consists of 5-layers in which hard particles and wave-like layers interlock to reinforce the nonstick layer and 50% more durable nonstick than the previous coating. PFOA/PFOS-free; surface will not warp, blister or peel; squeeze-cast body eliminates hot spots for even cooking and browning. Stratanium browns, sears, deglazes and reduced and thickens sauces without the messy clean up; cook with little or no oil for healthier lifestyles. Oven safe up to 500°; glass tempered lids are oven safe; for use with silicone, wood, nylon and metal utensils. For use in the oven, ceramic, gas, halogen, radiant ring, solid plate, and induction safe. Dishwasher safe. Made in Denmark with a lifetime warranty.