Premier Trendy Black Casserole Cook & Serve is stylish and hygienic to cook, Safe, Reliable and long lasting. Hard Anodized Advantages: The outstanding feature of this kind of cookware is very durable. By anodized aluminum, its scratch resistant no chip or peel easily. In fact, its twice harder than alloy like stainless steel. The smooth surface is from electro-chemical anodized process which creates layers of non-stick, The aluminum inside for preventing aluminum leaching possibility when cooking acidic food like tomato sauces or lemon juices High Cooking Performance. The whole aluminum building, it unsurprisingly conducts heat very fast and evenly. The ability of heat conductivity is inferior to pure aluminium to Clean As smoothly non-stick, hard-anodized products are very easy to clean