What is cool ironing clothing?

Those related to ironing are (handily) in the shape of an iron, and tell you which temperature setting you should be using. According to Persil, this is what they mean: Cool iron (one dot): Maximum sole-plate temperature of 110°C, steam-ironing may be a risk. Warm iron (two dots): Maximum sole-plate temperature of 150° Jul 20, 2018.

What does the term cold iron mean?

Coldiron or cold iron may refer to: Cold iron, historically believed to repel ghosts, fairies, and other supernatural creatures. “Cold Iron” (poem), a 1910 poem by Rudyard Kipling. Cold Iron (video game), 2018. Cold ironing, the process of providing shoreside electrical power to a ship at berth.