Calphalon Baking Sheets, Nonstick Baking Pans Set for Cookies and Cakes, 12 x 17 in, Set of 2, Silver

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.....

Standard for all my reviews: When reviewing products, I'm always objective and honest about the product or service. I review with information that I feel others would like to know about the product as I always assume what I'm writing will influence for or against the purchase. I try to go above and beyond surface characteristics and input into quality, value and application. Most importantly, I end the review with an answer as to whether I'd purchase the product again which I believe is the most critical question pertaining to the item. To manufacturers: Manufacturers: Want me to review your items, just let me know! I'm a bit of a Calphalon snob when it comes to our cooking items. We hung onto our old cookie sheets far too long, finally replacing them with this set of two. The sheets are large, great and exactly what I've come to expect from my Calphalon items. I use almost all Calphalon cookware and these are up to the standard. Would definitely purchase these again.

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 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