Burnt Tomato Soup?
I havent had the greatest luck with the original powdered BKF - I probably ruined an enameled Dansk pan with it. The outside of the pan was 95% new looking, still had the original beautifully smooth shiny enameled finish but some minor brownish marks from occasional...
Cleaning Outside of Revere Ware Pots?
The original BKF is too abrasive for the copper; I do not recommend it. They make several products; check their web site and/or contact the company for what you can use that wont hurt the vintage copper.
Cleaning Outside of Revere Ware Pots?
What about enameled - painted - pans? I have a vintage Dansk enameled pan that, after BKF, is no longer smooth and shiny - a cloth drags over the finish, which looks kind of splotchy and somewhat pitted. Lightly wet sand with 1500? (PS - were very familiar...