Fabrics and care · 8 October 2026 · 3 min read
What do the dots on an iron mean?
What the dots on an iron mean: one dot is low heat, two medium and three hot. Which fibres belong to each setting, how to read them on a care label, and polyester.
InspirationOne, two or three dots: heat
The dots on an iron show its heat setting: one dot is low, two dots medium and three dots hot. The same dots inside the little iron on a care label give the highest setting that garment can take, so you match the dots on the label to the dots on the dial.
The care symbol system sets a maximum temperature for each level. These are the usual figures, with the fibres that typically belong to each:
- One dot, low, up to about 110°C (230°F): acrylic, nylon, acetate, many polyesters and delicate synthetic sheers. Steam can damage some of these, which is why one-dot labels often warn against it.
- Two dots, medium, up to about 150°C (300°F): silk, wool, viscose and rayon, and some polyester blends.
- Three dots, hot, up to about 200°C (390°F): cotton and linen.
- An iron with a cross through it: do not iron at all.
- An iron with crossed-out lines underneath: iron without steam.
Reading the dots on a care label
The label gives a ceiling, not a target. Ironing below it is always allowed and often wiser, especially on dark colours, which can go shiny before they scorch. An iron symbol with no dots at all simply means the garment can be ironed; choose the heat by its fibre.
When a garment mixes fibres, the most delicate one sets the limit. A cotton kameez with a polyester lining or chiffon sleeves should be pressed at the lining’s or the sleeves’ setting; see how to iron a lined kameez for a way round that. Embroidery thread, sequins and printed motifs can be more delicate than the base cloth, which is why they are pressed from the back.
No label? Guess the fibre, start at one dot, and raise the heat a step at a time on a hidden spot such as an inside hem.
Matching your iron’s dial
Most dials show dots, fibre names or both. A few newer irons have a single setting that adjusts itself, so check the manual for which fabrics it covers. Irons also heat up faster than they cool down, so sort your pile before you start: press the one-dot pieces first, then the two-dot ones, and finish with cotton and linen. If you must go back down, give the iron time to cool and test it on something you do not mind before touching a delicate fabric.
Here is how that sorting usually works for a typical wardrobe of suits, always subject to the label:
- Three dots: lawn, cambric, cotton and linen, pressed on the reverse to protect prints and avoid shine.
- Two dots: silk, viscose kurtas and many winter blends; check marina and karandi labels, as the fibre varies.
- One dot: most chiffon, georgette and organza sold for suits, which are usually polyester, pressed through a cloth.
- No direct ironing: velvet, which is steamed instead so the pile is not crushed.
Which setting for polyester?
Start polyester at one dot. Many polyester labels allow two, but the fibre softens with heat, and the first signs of too much are a shiny patch, a stiff glazed feel or, at worst, fabric that sticks to the soleplate. Use a pressing cloth, keep the iron moving and let the fabric cool before you judge the result. Blends with cotton can take a little more heat than pure polyester. Our guide to ironing and steaming kurtas covers the pressing order once the setting is right.
When we make an outfit, you can tell us which fabrics you find easy to care for, and we take that into account when we propose fabric for Fabric + Stitching. Request a quote and mention how you like to iron.
Common questions
Can I use steam on the one-dot setting?
Usually not. Most irons cannot turn water into steam at low heat, so they drip or spit instead, which can leave water marks. Many one-dot fabrics also warn against steam on the label. Use a dry iron through a pressing cloth.
Are the dots the same on clothes bought in the US?
Yes. American care labels use the same one, two and three dot iron symbols for low, medium and hot, though some brands also print the temperature in Fahrenheit or a word such as low or cool.
What if my iron has no dots, only words?
Match the words to the fibre. Settings such as synthetics or nylon correspond to one dot, silk and wool to two, and cotton and linen to three. The care label on the garment still sets the limit.
