At first, prepare the ironing board and placing a towel on it. Next, sprinkle a tablespoon of salt to the towel. If the salt is coarser, it will be better. It will helps you to cover more area. If you finish this step, you can start to turn on the iron and heat it into the highest setting. In here, do not forget to steam completely. Iron the towel with salt gently. It will stick the dirt to the salt. You can do it until the iron surface is completely clean. But make sure to do it carefully.
If you wonder about how to clean an iron, you can try this way. This is simple and easy to apply. But make sure to do it as needed. If you clean the iron too often, it may damage the iron surface.