After using our styling tools they build up dirt and grime especially if we use hair products. These can block steam holes and other ways that can affect the way your curling iron, etc. work. When your device is cool, apply a quarter-size amount of toothpaste (non-gel) onto a towel and scrub the tool’s metal plate. Wipe off with a damp towel. The toothpaste’s mild abrasive clears off any residue on your tool.