This is what Bar Keepers Friend can do to a stainless steel pan that is many years old. A quick scrub every few weeks and it's good as new : r/CleaningTips
Bar Keepers Friend Cleanser & Polish with Mild Abrasives - Shop All Purpose Cleaners at H-E-B
What Is Bar Keepers Friend?
Bar Keepers Friend | House Cleaning Supplies | Williams Sonoma
How to Clean Stainless Steel Pans | Bar Keepers Friend ®
I used to bake professionally, and this $7 cleaner is what keeps my crusty pans looking shiny