Laundry symbols tell you which washing, bleaching, drying, ironing and professional-cleaning treatments an item can tolerate. Read the entire label before selecting a cycle. A number, dot, bar or cross changes the meaning of the basic shape, and permission to machine-wash does not automatically mean permission to tumble-dry.
Start with the five basic shapes
The wash tub refers to washing; a triangle concerns bleaching; a square covers drying; an iron concerns ironing; and a circle refers to professional cleaning. This is a useful first pass when a label looks unfamiliar. Written warnings on the same tag matter too.
Read them as one set of instructions for the finished item. A garment can allow a normal wash while prohibiting tumble drying, or permit dry cleaning while restricting water washing. Do not infer a complete routine from the first symbol you recognize.
A wash-tub number is a maximum, not a target you must reach
A number inside the tub normally gives a maximum wash temperature in degrees Celsius. An underline indicates reduced mechanical action, with additional bars calling for gentler treatment in the relevant symbol system. A hand in the tub indicates hand washing; a crossed-out tub means do not wash.
Match that information to your machine manual. Cycle names such as casual, easy-care and delicates are not identical across brands. Do not assume a quick wash is gentle, or that a low temperature compensates for vigorous agitation. Regional and older labels can vary, so use a reliable symbol reference when a mark is ambiguous.
An iron resting on an ironing board; illustrative example, not the linked Brabantia product. Michael Slaten / Wikimedia Commons, CC BY-SA 4.0. Displayed at reduced size.
Bleaching and drying need their own decisions
A crossed-out triangle means no bleach. Other triangle variants distinguish unrestricted bleaching from non-chlorine bleaching. Permission to use bleach is not a reason to add it to every load, and it does not override the cleaner’s dilution or safety directions. Never mix bleach with ammonia, acids or other cleaners.
A circle inside a square refers to tumble drying. Dots limit heat; a cross prohibits that process. Other marks inside a square describe natural drying such as line drying or laying flat. Check whether shade or drip-drying instructions also apply. A drying rack cannot support every wet knit safely unless the item is laid in the right position.
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Iron dots and professional-cleaning letters are not decoration
Dots in an iron symbol indicate permitted heat levels. A crossed-out iron prohibits ironing, and separate steam restrictions may appear. The garment’s label is safer than guessing from the majority fiber in a blend, because prints, adhesives and trims can be more vulnerable.
Letters within professional-cleaning symbols are directions for a cleaner, not instructions to buy and use solvents at home. Show the entire label and point out stains when taking the item in. A professional wet-cleaning mark does not mean that a domestic wash cycle offers the same treatment.
Laundry drying on an indoor rack. Illustrative photograph, not the linked product. W.carter / Wikimedia Commons, CC BY-SA 4.0. Displayed at reduced size.
Make a repeatable routine for confusing labels
Photograph the tag before it fades or before removing an irritating label. Record the garment, allowed wash process and drying method together. Sorting by care requirements then becomes easier than decoding everything again at the washing machine.
If the label is illegible or missing on a valuable item, ask the manufacturer or a professional cleaner. Avoid home burn tests and experimental hot washes. A small hidden color test can reveal one problem, but cannot establish whether lining, glue or shaping will survive a complete cleaning cycle.
Related practical guides
Steam Iron: Settings, Soleplates and Safe Care · Clothes Drying Rack: Capacity, Airflow and Placement
Sources and further reading
Shopping links
Optional Amazon searches for relevant supplies. Compare the listed materials, dimensions and care instructions before buying. These are shopping searches, not products tested for this guide.
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