If you notice your iron isn’t removing wrinkles like it should, it could be due to a gunky build-up in the steam holes. You should clean your iron by filling the water tank with 1 cup of apple cider vinegar. Stand the iron upright and turn the steam setting on for 5 minutes. Pour out any excess liquid. Then refill with water and repeat. Your iron should work like new now because the vinegar breaks down any mineral deposits in it.