Cooking & Baking

I bought some stainless steel sheet pans and the first time I used them, I heard a loud noise and upon checking out the oven I noticed the pans warp out and become uneven.

I could never use them for anything else but cookies. I thought they’d be a better product but was surprised they were not.

I also have some other sheet pans that are probably aluminum, which is fine but cannot get them looking clean. I’ve tried elbow grease but alas they are still stained. If you know what products to use to restore them I’d definitely appreciate your input.