A crossed-out triangle on a care label means do not bleach. It doesn’t mean “try a gentler bleach.” That small distinction can spare a garment from discoloration. Laundry symbols follow a pattern: the shape names a care method, while dots, lines, numbers, or an X tell you its limits.
Before washing an unfamiliar item, check its sewn-in label. Symbols usually appear in this order: washing, bleaching, drying, ironing, and professional cleaning. Labels vary by country, and some include written instructions. If the words and symbols seem to disagree, follow the more restrictive instruction until you can check with the manufacturer.
Start with the five basic shapes
- Wash tub: washing with water.
- Triangle: bleaching.
- Square: drying.
- Iron: ironing.
- Circle: professional cleaning.
An X across a symbol rules out that method. Dots generally indicate heat; more dots permit a higher temperature. One or two horizontal bars under a symbol call for gentler handling. Don’t confuse them with lines drawn inside a drying square. Those details are especially important for garments that might shrink, stretch, fade, or lose their finish.
Wash-tub symbols: water, temperature, and agitation
Machine wash, hand wash, or no washing
A plain tub permits washing in water, usually by machine. A hand reaching into the tub calls for hand washing. Use cool or lukewarm water and a suitable detergent, then squeeze gently rather than rubbing or wringing. A machine’s “hand-wash” program isn’t automatically safe for every hand-wash item; the garment’s construction and the machine both matter.
A crossed-out tub means do not wash, not “wash cold.” Look at the other symbols or written instructions for an appropriate method. A circle may indicate professional cleaning, but not every item that can’t be washed should be dry-cleaned.
Numbers, dots, and bars
A number inside the tub gives the maximum wash temperature in degrees Celsius. A 30 means no hotter than 30°C, not that you must wash at exactly 30°C. Cooler water may work if the item still gets clean. Some labels use dots instead of numbers; more dots indicate warmer water. Dot conventions and washer settings can vary by region, so follow a written temperature when one is provided.
One bar beneath the tub calls for a milder cycle, often called permanent press or easy care. Two bars mean a very gentle or delicate cycle. A smaller load and an appropriate spin speed give the fabric room to move without excessive friction. The bars affect the cycle, not the maximum temperature shown inside the tub.
Triangle symbols: choosing bleach safely
An empty triangle generally permits bleaching when needed. Two diagonal lines inside the triangle mean non-chlorine bleach only. An X across the triangle means no bleach at all. Permission isn’t a recommendation: a washable garment doesn’t need bleach just because its label allows it.
A product labeled “color-safe” doesn’t override the garment’s care label. If non-chlorine bleach is allowed, check that the specific product suits the fabric and follow its directions. If bleach is prohibited, use a suitable detergent and treat stains promptly instead. Test any unfamiliar stain treatment on a hidden area, particularly on dyed or printed fabric.
Square symbols: tumble dry or air dry
A circle inside a square
A circle inside a square means tumble drying. Dots inside the circle set the heat level: one is low, two medium, and three high where that marking is used. If the tumble-dry symbol is crossed out, keep the item out of the dryer—even on a no-heat setting—unless the manufacturer’s written instructions explicitly allow it.
A black-filled circle inside the drying square can mean tumble dry without heat. It’s less common than dot markings, so check any accompanying text. Don’t turn up the heat to finish a damp garment labeled for low heat: elastic, coatings, prints, or fibers may be damaged before the item dries.
Lines inside a square
A square without a circle gives instructions for drying without a tumble dryer. Common markings include:
- One vertical line: line dry or hang to dry.
- Two or three vertical lines: drip dry, with minimal spinning or wringing.
- One horizontal line: dry flat, usually after gently reshaping the item.
- Diagonal lines in a corner: dry in the shade, away from direct sunlight.
Line-dry and drip-dry designs can vary between labeling systems. If a delicate knit says “dry flat,” lay it on a clean, dry towel or mesh rack rather than hanging it by the shoulders; the weight of the water can stretch it. Spread a flat-drying item out so air can reach it, and turn it if the underside stays damp. Shade instructions help protect fabrics and dyes that may fade in direct sun.
Iron symbols: match the heat to the label
A plain iron permits ironing. One dot inside it means low heat, two medium, and three high. Your iron may label settings by fabric—synthetic, wool, cotton, or linen—but follow the garment’s symbol rather than judging by appearance. A blend, print, or decorative finish may tolerate less heat than the main fiber.
An X across the iron means do not iron. If only the steam lines beneath it are crossed out, ironing may be allowed, but steam is not. For an item you can iron, start low, work on the reverse if appropriate, and increase the heat only as the label allows. Don’t test a hotter setting on a visible area. A pressing cloth can protect a surface, but it can’t make a prohibited heat setting safe.
Circle symbols: professional cleaning
A circle refers to professional textile cleaning, not a normal washer cycle. Letters such as P or F tell a cleaner which solvents and processes are suitable; W indicates professional wet cleaning. They aren’t instructions to buy a solvent or run a standard wash at home.
A crossed-out circle rules out the professional cleaning method indicated. One bar beneath a circle calls for a gentler professional process; two bars signal a more restricted one. Bring the whole garment and its label to the cleaner, especially if it has a lining, structured shoulders, glued details, or contrasting trims. “Dry clean only” is a stronger restriction against home washing than “dry clean.”
When a label leaves you uncertain
Care symbols apply to the finished garment, not just its fabric. A cotton shirt with a delicate print may need cooler handling than a plain cotton towel. Washing everything cold isn’t always the safest answer, either: a bulky washable item needs enough water and movement to rinse properly, while an item marked “do not wash” needs another cleaning method.
Before cleaning an unfamiliar garment, look for crossed-out methods first. Then check the permitted temperature and any bars calling for gentler handling. If the label is missing, identify the fabric and construction as best you can; for something valuable or difficult to replace, ask the manufacturer. For example, if a washable garment shows 30°C with one bar beneath the tub and one dot in the tumble-dry square, choose a gentle wash no hotter than 30°C, followed by low-heat tumble drying if you use a dryer.
