I have purchased Copper Chef products for several ...

I have purchased Copper Chef products for several years now. These products include, but are not limited to pots, pans, lids, baking sheet, utensils and others. I was so pleased that I discarded ALL of my other NON Copper Chef products in my cabinet. I love that the lids are so versatile and fit more than one item, such as my boiling pot as well as my smaller pots and pans.
I was so pleased with Copper Chef that I had to ask myself only one question...."WHY DIDNT I MAKE THESE SIMPLE CHANGES SOONER?" Copper Chef is so reliable and so very easy to clean. I love them.
HOWEVER, I did have an issue with one item, my baking sheet. It seems as though it stained so quickly and there is no way to clean it without ruining its integrity. I wish it was as reliable as the rest of my set. It also seems that it doesn't sit flat in my oven. Its too bad because I just love all the other products I own.