Unlike non-stick bakeware, these hardwearing and versatile baking trays will never flake, peel or rust. This tray has perforated holes for extra heat circulation.. Made of anodised aluminium: an aluminium core with an incredibly hard layer of oxidisation on the outside. Made in the UK. Lifetime guaranteed. Holes in the tray allow heat to circulate and moisture to escape. Surface will not peel, flake or rust. Sturdy body will not buckle or warp in the oven. Over time, a natural non-stick patina will develop on the anodised surface. Abrasion-resistant anodised layer is twice as hard as stainless steel, and is safe for use with metal utensils. PTFE and PFOA free. Aluminium provides efficient and even heat distribution, for superior baking results. 37 x 27 x 1.8cm. Oven safe up to 240°C. Also suitable for use on non-induction hobs. Hand wash only in warm soapy water. Mermaid have been making high-quality aluminium bakeware in Birmingham for over a hundred years. Manufactured by Samuel Groves, the venerable creator of our professional-quality, buy-for-life pots and pans, Mermaid bakeware shares the Samuel Groves reputation for quality. Utilising aluminium’s excellent heat distribution and conductivity, Mermaid bakeware has an anodised coating that will never peel. Ditch your flaky non-stick trays, and invest in durable British-made products you’ll reach for on the daily.