Calphalon Premium Nonstick Baking Pans Set of 2, 12 x 17 inch, Silverware, Heavy Gauge Steel Core

Every time so far when cleaned in the dishwasher, the water that collects under the rolled edge of the perimeter is brown when the tray is turned over to allow the excess water to flow out. I believe this is rust, so each time after washing I have to make sure and dry with a paper towel. At this point, it is not certain how long the trays will last due to the rust.....

Before I decided to purchase these baking trays I did some measurements to my new macaroon silicone mats and kitchen oven. I am glad I did it because these trays fit perfectly for my 2x silicone mats (11.6”x16.5”purchased also from Amazon), and inside my 60cm oven (as per photos). I haven’t used trays yet but they are look great and good quality. I couldn’t be happier with these purchase. Now I can start baking using my new kitchen tools:-)

These pans are great, and they fit my silicone mats perfectly. This is the only pan I use now. I did notice that every once in a while, the pan will "pop" when in the oven. It looks like one of the corners pops up when in the oven, but it goes back down after the pan is hot.

These baking sheets are fantastic. They warp a little in the oven but "pop" back flat as they cool down. Easy to clean, but they're a little too large the stand up on their side in my dishwasher so I've been doing it by hand in the sink. They're also a perfect fit for AmazonBasics Silicone Baking Mat - 2 Pack , which I bought at the same time.

best multi-purpose cook sheet i have ever owned