Here are the rusty objects I tried this out on first. As you can see, they’re very, very rusty. To follow this method, you’ll need to get ahold of some citric acid powder from your local drug/grocery store, a plastic container, a scouring pad, and some rubber gloves for safety.
Before I applied the citric acid, I made sure to clean off all the excess dirt and grime using good old fashioned water.
No need to use soap or anything here, just use water and a sponge to get rid of the dirt and proceed to the next step.