To clean a hair straightener, you need to follow these steps:

1. Ensure that the straightener is unplugged and completely cool. Let it sit on a heat-resistant surface or cooling mat after use.
2. Soak a soft cloth in lukewarm water and squeeze out the excess water. Alternatively, you can use a specific iron cleaning product that is sold in stores.
3. Gently rub over the surface of the plates using the damp cloth or the cleaning solution. You can use a cotton bud to remove the difficult to reach areas, like the sides and the tip of the iron.
4. Allow the hair straightener to dry fully before using them.