The iron with one dot

Short answer: An iron with one dot means ironing at low heat, around one hundred and ten degrees. It is the setting used for viscose, elastane and fine knitwear. Here is what it means on your iron and how to iron without damaging the fabric.

What the symbol means

The iron symbol on the care label shows how hot you may iron. One dot in the middle means low heat, around one hundred and ten degrees. The dots work as a scale: the more dots, the hotter the iron may be. One dot is the most careful setting, made for the fabrics that react fastest to heat.

What low heat means in practice

On most irons, one dot matches the lowest setting below the wool mark. If unsure, look for the dots around the dial and pick the one with the fewest. Let the iron warm up and wait a moment before you begin. It is the right setting for women's bamboo tops, where the fabric is soft.

Which fabrics need one dot

One dot is used for viscose, elastane and fine knitwear. These are fabrics that feel soft and smooth and give way when they get hot. With a blend, the instruction follows the most sensitive fibre in the fabric. So always read the label on each item instead of assuming it is like the last thing you ironed.

Why higher heat is risky

Viscose and elastane melt or turn shiny long before cotton is damaged. A setting that is fine for a shirt can ruin a top in seconds. The damage cannot be fixed afterwards, so it is better to start low and go up than to start too high. That includes the elastic in a bamboo bra.

Once the damage is done

A shiny patch in the fabric does not disappear by washing or by ironing again. Melted fibres have fused, and the surface is changed for good. So prevention is all that helps. If you are in any doubt about the heat, always test first on a place that is not seen, such as inside a seam.

How to iron safely

Turn the item inside out and iron from there. Use steam, and place a thin cloth between the iron and the fabric so the iron never touches the surface directly. Keep the iron moving and do not let it rest in one place. That way you can also smooth a bamboo sweatshirt for women without making the surface shiny.

Steam instead of an iron

On knitwear, steam is almost always enough. Hang the item on a hanger in the bathroom while you shower, or hold a steamer at a distance so the creases loosen by themselves. That avoids contact with the hot soleplate completely. It is the mildest method and suits anything where you worry about heat.

Check the setting every time

The iron does not remember what you ironed last, so check the dial before you start a new item. Sort clothes by heat and begin with what tolerates least. That way an iron heated for cotton never ends up on a viscose top. It takes seconds and can save you a ruined garment.

Frequently asked questions

How many degrees is one dot

Around one hundred and ten degrees at the soleplate. That is low heat and the most careful iron setting, suited to viscose, elastane and fine knitwear.

Can you steam instead of ironing

Yes, and on knitwear it is almost always enough. Keep the steam at a distance so the hot soleplate does not touch the fabric, and let the item dry.

What happens with too much heat

The fabric turns shiny, and at worst the fibres melt together. The damage cannot be fixed, so start on the lowest setting and only go up if the label allows it.