If you have rust on the handle or the top of the walls on your cast iron pan, or any places where coke can’t cover it, then buy a plastic bag, place your cast iron into it, and fill it with coke.

It can work quicker, sometimes as little as 10 minutes however, it depends on how severe the rust is and how deep it’s penetrated. Now cover the rusted area on your cast iron in coke and let it sit there for an hour. Diet cokes will be less effective due to being less acidic on the PH scale.

How to remove rust from cast iron with cokeįirst, you should buy the most acidic coke, which according to the American dental association, is Coca-cola caffeine-free. However, any other cokes with sugar in will work just fine. In this article I’ll be talking about how to remove rust from cast iron using coke. Once you have removed the rust, make sure you season your cast iron skillet properly to prevent rust forming again. You’ve probably heard that coke removes rust from cast iron before, whether that’s through Facebook, Youtube or just word of mouth, and it can be tempting since rust is frustrating to remove, but can coke remove rust from cast iron?Ĭoca-cola (Coke) drinks can remove rust from cast iron, this is due to the ingredient phosphoric acid, phosphoric acid is the most acidic chemical added to any drink, and it gives coke a PH level between 2.3 and 3 (Depending on which coke you buy) as opposed to other fizzy drinks that are roughly 3.3-5, this means coke is acidic enough to remove rust from cast iron.