Machine wash, cold (30°C / 1 dot)
Machine wash this in water up to 30°C. In the US this shows as one dot.
What to do
Wash at up to 30°C (one dot in the US).
What to avoid
That 30°C is a ceiling. Don't wash it hotter than the label shows.
How to spot it on a label
The washing symbol comes first, at the far left of the care-symbol row. Confirm either 30 printed inside the tub on an ISO label or one dot inside it on an ASTM label, then check that the mark is not a bar beneath the tub.
Easy to confuse with
- Machine wash, cold (30°C / 1 dot)Machine wash, warm (40°C / 2 dots)
Check the mark
Count the marks inside the tub: this one has one dot or the number 30, not two dots or 40.
- Machine wash, cold (30°C / 1 dot)Mild / permanent-press wash
Check the mark
Check the mark's position: the temperature mark sits inside the tub; the one-bar mild-process mark sits underneath it.
On a real label
Printed cotton hoodie
Read together: Machine wash at no more than 30°C. Do not bleach, tumble dry only on low heat, and do not iron or dry clean.
Stretch denim jeans
Read together: Machine wash at no more than 30°C. Use only non-chlorine bleach if needed, line dry, and keep the iron on low.
- Category
- Washing
- Appears on
- US and international labels
- Commonly seen on
- Often appears on dark colors, delicates, and items labeled for cooler washing.
Related symbols
- Machine wash, warm (40°C / 2 dots) Machine wash this in water up to 40°C. Two dots in the US.
- Hand wash only Hand wash, not machine wash. ISO has an ambient-water variant (20-30°C) and another marked up to 40°C. An unqualified ASTM/US instruction does not itself mean cool water.
- Machine wash, normal You can machine wash this on a normal cycle.
Common questions
-
Is 30 degrees the same as one dot?
- Yes. A 30°C tub on an ISO label and a one-dot tub on an ASTM label both set a 30°C maximum wash temperature.
-
Can I wash a 30C garment below 30C?
- Yes. The marked temperature is a maximum, so a cooler wash stays within the label's instruction.
-
Does one line under the tub mean cold wash?
- No. A temperature dot goes inside the tub. A horizontal bar underneath changes the washing process, not the water-temperature limit.
-
Is one wash dot the same as one dryer dot?
- No. Read the dot with its surrounding shape: a dot in a washtub sets wash temperature, while a dot in a circle inside a square sets tumble-dryer heat.