Yes, triply cookware contains an aluminium layer inside, placed between two stainless steel layers. This aluminium core helps distribute heat evenly and improves cooking efficiency. It is completely enclosed and does not come in contact with food, making triply cookware safe, durable, and suitable for everyday healthy cooking. https://www.omichef.com/collections/triply-cookware/products/triply-frying-pan-trimax-stainless-steel-shop-now