Built for durability, performance, and versatility, the blue carbon steel baking sheet tray set from de buyer is a dependable upgrade for any kitchen. Made in France, this two-piece set includes one round perforated sheet and one solid rectangular sheet. Both pieces are designed to resist warping, deliver exceptional heat conduction, and produce crisp, evenly baked results. The perforated round sheet promotes airflow and is perfect for items like tarts, pizzas, or pastries that benefit from a crisp base. The solid rectangular tray is ideal for everything from roasting vegetables to baking cookies or bread. Strong, durable, and made to perform under high heat, this set is suitable for a wide range of baking and cooking tasks. The trays will darken and develop a natural patina with use, enhancing their nonstick qualities over time. Handwashing is recommended to preserve the integrity of the steel.