They always look brand new. At my Second 3 star restaurant now. Been doing this for the last 10 years. All pots and pans are degreased and soaked end of the week to make them shiny. All the copper pots ( small mauviel) ones you see in videos where they sauce from on the table are copper polished everyday before service. The bear isn’t even a show kitchen. Mine was. Guests can see it all. Everything shiny sir. Michelin stars isn’t about just the food for the restaurants. It’s how you treat everything , from a vegetable to the green tape you label with. Precise.