The Cooks Standard 20-Quart Classic Stainless Steel Stockpot with Lid is made with polished 18/10 stainless steel with an aluminum disc layered in the bottom. The aluminum disc layered bottom provides even and quick heat distribution and prevents hot spots. Stainless steel lid keeps in heat and moisture for a tight seal. Deep stainless steel riveted handles offer durability and stay cool. Tapered lip for easy and drip-free pouring. Large size for multi-purpose function: canning, jarring, and stewing. Induction compatible. Works on gas, electric, glass, ceramic, halogen, etc. Oven safe to 500°F. Dishwasher safe.