Stratanium consists of 5layers in which hard particles and wavelike layers interlock to reinforce the nonstick layer and 50 more durable nonstick than the previous coating PFOAPFOSfree surface will not warp blister or peel squeezecast 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 Use on ceramic gas electric solid plate and halogen cooktops not compatible for induction cooktops Made in Denmark with a lifetime warranty dishwasher safe