A 40 with a line under it on a clothing care label means you should machine wash the garment on a Synthetics Cycle (or gentle wash) at a maximum temperature of 40° Celsius, using a slower spin to protect the fabric. The number (40) indicates the warm water temperature, and the single line under the wash tub symbol signifies a reduced mechanical action, perfect for items like synthetics.
A tub with one or more lines underneath and a temperature simply means that your garment should be washed gently at the prescribed temperature. Avoid the spin cycle if possible.
The numbers 30, 40, 50 and 60 reference water temperature in degrees Celsius. A cold wash is around 30°C (85°F), warm is 40°C (105°F), warm/hot is 50°C (120°F) and hot is 60°C (140°F). These temperatures should be considered the maximum recommended for safely washing that garment.
Is 40 Degrees Hot or Cold for Laundry? The number 40 corresponds to 40°C, or 104°F. This is a warm wash setting that is often used for a colored wash. The number on the wash symbol indicates the maximum temperature the item should be washed at.
40°C is not a cold wash although it is the most common wash temperature. It is the temperature most garment labels recommend as it is warm enough to clean soiled clothing and get rid of tougher stains such as makeup, without being too harsh on the fabric.
Garment Care symbols Explanation || How to Read Clothing Care Labels
Does a 40 wash shrink clothes?
Yes, washing clothes at 40°C (warm) can cause some shrinkage, especially with natural fibers like cotton, wool, and silk, as the heat makes fibers contract, but synthetics like polyester and nylon are generally unaffected; always check the garment's care label, as higher temperatures or tumble drying significantly increase shrinkage risk.
No, 40°C is generally considered a warm wash, not a hot wash; hot washes are typically 60°C or higher, while 40°C is ideal for most everyday laundry, effectively cleaning and sanitizing without damaging fabrics, though 60°C+ is better for sanitizing and tough stains.
If it contains a 30, this means that you may only wash these textiles at 30°C. An additional line under the washing symbol indicates a gentle wash cycle. You should not overfill the washing machine and only spin the laundry at a lower speed. Two lines under the symbol indicate particularly sensitive materials.
This symbol is for linear inequalities where we don't know if the variable's value is greater than or equal to a specific value. This symbol is the “greater than” symbol ( >) with a line under it. The line below the greater sign means “equal to”.
The symbol ⊆ means “...is a proper or improper subset of...” B ⊂ A means that Set B is a proper subset of Set A. ( Set B ≠ Set A) B ⊆ A means that Set B is either a proper or improper subset of Set A. ( Set B may or may not be equal to Set A)
The 'Greater than or equal to' symbol is used in linear inequalities when we do not know whether the value of a variable is greater than or equal to a particular value. It is expressed by the symbol '≥'. This symbol is the 'greater than' symbol ( >) with a sleeping line under it.
40 degrees Celsius is considered a warm wash, not cold; it's a balanced temperature for everyday laundry, offering better cleaning than cold while being gentler than hot water, ideal for most everyday clothes, synthetics, and items with body fluids like underwear, but always check care labels.
Air-drying is often touted as the gentler method for clothing care. By avoiding the high heat and tumbling action of a dryer, air-drying can help to: Preserve fabric integrity: Delicate fabrics, such as wool, cashmere, and silk, are particularly susceptible to damage from machine drying.
Yes, an XL (Extra Large) in men's sizing often corresponds to a chest measurement of around 42-44 inches (106-111 cm), though it can vary by brand; specifically, a size 42 is frequently considered a Large (L), while XL starts around 44 inches, but some charts put the start of XL at 42 inches for a looser fit or certain garment types, making the fit slightly different depending on the retailer and garment.
The cotton fabric is secretly sensitive and can hardly withstand washing temperatures of over 40 degrees. The result: the clothes shrink. Although modern fabrics are more durable because they are usually enriched with a small amount of synthetic fibers, the top rule for jeans is: wash them as cool as possible.
Absolutely. If you need to perform stain removal on any of your clothes, then it is totally fine to opt for 40 degrees instead of 30 degrees on your washing machine. However, if you need to wash incredibly delicate fabrics like silk, then we would recommend sticking to 30 degrees.
Washing at 40°C (warm) is great for most everyday laundry, saving energy and being gentle on clothes like synthetics and denim, while 60°C (hot) is for deep cleaning items like towels, bedding, or clothes worn by someone sick to kill germs and tackle tough stains, though it uses more energy and risks shrinking some fabrics. The key is to check care labels; 40°C is the versatile middle ground, but 60°C is best for hygiene and heavy-duty cleaning.
You shouldn't do laundry during peak energy hours (4 PM - 9 PM) to save money, on New Year's Day or Good Friday due to superstitions, or when the machine is already full (be considerate of others). It's best to avoid running your washer/dryer when energy demand is high, typically late afternoon to evening, for better rates and grid efficiency.
If your towel continues to smell after a longer wash, it usually signifies that bacteria is still in your washing machine - or hiding somewhere on your towel. By running the cycle again with bleach or washing your towels for a second time, you can remove any stubborn bacteria left behind.
Washing at 40 degrees Celsius is ideal for most everyday garments and textiles, such as cotton t-shirts, trousers, underwear, and coloured clothing. This temperature is high enough to effectively remove dirt while being gentle on fabrics and colours.
