Bakemaster Steel Perfect Crust items are designed with continuous diamond shape holes to allow moisture to escape – creating a perfect crust for breads and pastry cooking. These trays also include a double non-stick coating. Bakemaster trays are made from heavy duty carbon steel with rolled edges for durability and to prevent warping. Dishwasher, freezer and fridge safe, and oven safe to 260 deg C. Professional quality at a reasonable price, you can cook with confidence, creating a golden and crispy crust every time.