Laundry Codes: How to Read Care Labels and Build a Routine Around Them
Laundry Codes: How to Read Care Labels and Build a Routine Around Them
You’re looking at the care label on a new sweater and see a row of symbols: a bucket with a number, a square with a circle, a triangle, and an iron with dots. Below the symbols, there’s text that says “100% cotton, made in Vietnam.” You know the symbols mean something, but you’ve never taken the time to learn what. Those symbols are laundry codes, and they tell you exactly how to wash, dry, iron, and bleach the garment without damaging it. Once you know how to read them, you can build a laundry routine that keeps your clothes looking new for years.
Laundry codes are the standardized symbols and text on clothing care labels that indicate how to wash, dry, iron, and bleach a garment. The symbols are part of the international ISO 3758 standard and are used by clothing manufacturers worldwide. Reading laundry codes helps you avoid shrinking, fading, and damaging your clothes.
To read laundry codes, identify the five symbol categories: washing (bucket), bleaching (triangle), drying (square), ironing (iron), and professional care (circle with a letter). Each symbol has additional marks (dots, lines, crosses) that indicate temperature, cycle, or restrictions. Build your laundry routine around the codes on your most-worn garments.
The Five Code Categories
Washing Codes (The Bucket)
| Code | Meaning | What to Do |
|---|---|---|
| Bucket with 30 | Cold wash (86F) | Use cold water |
| Bucket with 40 | Warm wash (104F) | Use warm water |
| Bucket with 60 | Hot wash (140F) | Use hot water |
| Bucket with one line | Permanent press | Use Perm Press cycle |
| Bucket with two lines | Gentle cycle | Use Delicates cycle |
| Bucket with hand | Hand wash only | Wash by hand in cold water |
| Crossed-out bucket | Do not wash | Dry clean only |
Bleaching Codes (The Triangle)
| Code | Meaning | What to Do |
|---|---|---|
| Empty triangle | Any bleach | Chlorine or oxygen bleach OK |
| Triangle with two lines | Oxygen bleach only | Use color-safe bleach only |
| Crossed-out triangle | Do not bleach | No bleach of any kind |
Drying Codes (The Square)
| Code | Meaning | What to Do |
|---|---|---|
| Square with circle, no dots | Tumble dry normal | Use any heat |
| Square with circle, 1 dot | Tumble dry low | Use low heat |
| Square with circle, 2 dots | Tumble dry medium | Use medium heat |
| Square with circle, 3 dots | Tumble dry high | Use high heat |
| Square with circle, 1 line | Permanent press | Use Perm Press |
| Square with circle, 2 lines | Gentle | Use Delicates |
| Crossed-out square with circle | Do not tumble dry | Air dry only |
| Square with horizontal line | Flat dry | Lay flat to dry |
| Square with curved line | Line dry | Hang on a line |
Ironing Codes (The Iron)
| Code | Meaning | What to Do |
|---|---|---|
| Iron with 1 dot | Low heat (230F) | Iron synthetics, silk |
| Iron with 2 dots | Medium heat (300F) | Iron wool, polyester |
| Iron with 3 dots | High heat (390F) | Iron cotton, linen |
| Crossed-out iron | Do not iron | Don’t iron |
Professional Care Codes (The Circle)
| Code | Meaning | What to Do |
|---|---|---|
| Circle with P | Dry clean (any solvent) | Take to dry cleaner |
| Circle with F | Dry clean (petroleum only) | Take to dry cleaner |
| Circle with W | Wet clean | Professional wet cleaning |
| Crossed-out circle | Do not dry clean | Wash at home |
Building a Routine Around Laundry Codes
Step 1: Sort by Washing Code
Sort clothes by their washing code requirements:
- Cold water group: Darks, delicates, bright colors (bucket with 30)
- Warm water group: Everyday cotton and blends (bucket with 40)
- Hot water group: Whites, towels, bedding (bucket with 60)
- Hand wash group: Silk, wool, delicate knits (bucket with hand)
- Dry clean only group: Suits, structured coats, some silks (crossed-out bucket)
Step 2: Sort by Drying Code
Within each washing group, sort by drying requirements:
- Tumble dry group: Cotton, polyester, everyday items
- Permanent press group: Dress shirts, synthetics
- Air dry group: Silk, wool, delicates, activewear
- Flat dry group: Sweaters, knits
Step 3: Choose Detergent
Use Tide Free and Gentle for all groups. It’s safe for all fabrics, all water temperatures, and sensitive skin. Use 2 tablespoons per load.
Step 4: Add Boosters
- For odors: Add half a cup of Arm and Hammer Baking Soda
- For hard water: Add half a cup of white vinegar to the rinse cycle
- For towels: Add vinegar instead of fabric softener
Step 5: Clean Your Machine Monthly
Run a cleaning cycle with affresh Washing Machine Cleaner to keep your machine running efficiently.
Tips for Following Laundry Codes
When in doubt, use the gentlest setting. Cold water, gentle cycle, and air dry won’t damage any fabric.
Check the code before buying. If a garment says dry clean only and you don’t want to pay for dry cleaning, don’t buy it.
Keep a cheat sheet. Print a laundry code guide and keep it in your laundry room for quick reference.
Sort by code, not just color. Two dark items may have different washing codes. Sort by care requirements first, then by color.
Use the right products. Use enzyme detergent for all loads, baking soda for odors, vinegar for hard water and towels.
FAQ
What are laundry codes? Laundry codes are the standardized symbols on clothing care labels that tell you how to wash, dry, iron, and bleach a garment. There are five categories: washing (bucket), bleaching (triangle), drying (square), ironing (iron), and professional care (circle with a letter).
How do you read laundry codes? Identify the basic shape first (bucket for washing, square for drying, triangle for bleaching, iron for ironing, circle for professional care). Then look for additional marks: dots indicate temperature, lines under the symbol indicate cycle type, and a cross means don’t do it.
Why should you follow laundry codes? Following laundry codes prevents shrinking, fading, tearing, and wrinkling. It extends the life of your clothes and saves money by avoiding damage. Ignoring the codes can ruin garments in a single wash.
What does the number in the washing symbol mean? The number in the bucket symbol is the maximum water temperature in degrees Celsius. 30 means cold (86F), 40 means warm (104F), and 60 means hot (140F). Don’t exceed the temperature on the label.
What does P mean on a laundry code? P inside a circle means dry clean using any solvent. F means dry clean using petroleum solvent only. W means professional wet cleaning. A crossed-out circle means do not dry clean.
How do you build a laundry routine around codes? Sort clothes by their washing code (cold, warm, hot, hand wash, dry clean), then by drying code (tumble dry, air dry, flat dry). Use 2 tablespoons of enzyme detergent, add boosters if needed, and clean your machine monthly. When in doubt, use the gentlest setting.
References
- American Cleaning Institute. “Laundry Care Symbols.” cleaninginstitute.org.
- The Spruce. “Laundry Symbols Explained.” thespruce.com.
- Tide. “How to Read Care Labels.” tide.com.
- ISO 3758. “Textiles: Care Labelling Code.” iso.org.
