Lets see. This is a Tramontina inox Trip-Play sauté pan as new: Now a comparison. Left, the same sauté pan, less than 2 month old, full of stain (I clean with vinegar, etc.). Right, a 12 years old Tramontina inox Trip-Play pan with no special care. Both made in Brazil. It seems the quality of both pans are totally different. What's going on?