What is the lowest temperature setting available on an iron?

The lowest temperature setting available on an iron is typically designated for synthetic fabrics, particularly nylon. This setting is specifically designed to prevent damage that could occur from higher heat levels, as nylon can easily melt or become disfigured when exposed to excessive heat.

Each fabric has a recommended temperature range to ensure optimal pressing without harm. Cotton and linen require higher temperatures because they can withstand more heat without adverse effects. In contrast, silk can also be sensitive, but it is often set slightly higher than nylon to allow for effective pressing without risk of damage. Thus, the correct answer reflects the specific needs of fabric types, ensuring safe and effective use of the iron for different materials.