There are a number of ways to get rust off of cast iron. One of the best methods is to use vinegar and water. The solution dissolves the rust and then allows it to be scrubbing away. After the rust has been scrubbing away, you will need to rinse the pan and dry it off. If you are dealing with a more stubborn rust, you may need to soak the cast iron in the vinegar for up to 6 hours. You should then wash the rust out with warm water.
Another method is to mix baking soda and vinegar. This will create a paste that can be rubbed into rusty spots. The paste should sit for a couple of minutes before it is rinsed off. Vinegar is a natural rust remover and will help with mild and medium rust problems. Depending on the amount of rust, you can use more or less vinegar.
A third option is to use a coarse salt. It is easy to use and works almost the same as the baking soda scrub. However, salt crystals are a bit more abrasive than the particles of baking soda. Use a scrubber or a paper towel to scrub the rust.
Kosher salt is also good for removing rust. It can be used on different sized pans and can be disposed of with paper towels.
Finally, using steel wool is a great way to remove rust. You can use this on smaller areas of rust and for tougher rust. When using steel wool, make sure that you work in a straight line so that you do not swirl the metal. If you do not work the rust in a straight line, it will take longer to remove it.
Rust on cast iron can be very difficult to get rid of. But with a little elbow grease and some hard work, it can be done. Just remember to wear a mask to protect your eyes while you are scrubbing.
Once you are done removing the rust, you can coat your cast iron with vegetable oil. This will prevent the rust from reforming. Also, it will reinforce the seasoning of the pan. Make sure that you blot up any excess oil. Avoid leaving the pan on the stove to dry for too long. Allowing it to dry out for too long can lead to further rusting.
In addition, you can place your cast iron in the oven for a few minutes before rinsing it off. This will help the seasoning last longer. If the rust is still there, you can try heating the pan up to break up the remaining rust.
Other options to get rust off of cast iron include using a soda, vinegar, and sea salt. Coca-Cola and Coca-Cola products contain chemicals that will help loosen the rust. These chemicals will also make the rust easier to scrub away.
For the most part, if you have a good supply of these items in your home, you should have no trouble getting your cast iron back in tip-top shape. However, you can always improvise and try new ideas!