The Calphalon Unison Nonstick Dutch Oven is made from premium, heavy-gauge, hard-anodized aluminum with cast stainless steel handles and a tight-fitting glass lid. Aluminum heats very quickly and evenly (second only to copper) and heat transfers easily up the sides, making Unison pots ideal for fast boils or slow, lingering simmers and gentle braises. The interior is coated in 3 layers of "Slide Nonstick", a durable PFOA-free surface that food slides freely on, and wipes clean with unparalleled ease. Traditionally curved bottoms create rounder corners that are easy to reach with utensils. Available in three sizes, the Calphalon Unison Nonstick Dutch Oven is ideal for soups, stews, sauces and braises, or boiling, simmering and blanching. Pots and lids are oven safe up to 500°F. The stainless steel handles have a brushed finish and will not get hot on the stove top. Dishwasher safe. Manufacturer's full lifetime warranty.