Key Takeaways
Shrinkage of clothing during washing is primarily due to the interaction of heat and water with the fabric fibers. To avoid this, it is crucial to follow the washing instructions on the garment label and select the correct wash and dry cycle.
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Introduction
It's common to find yourself faced with a favorite sweater shrunken after machine washing. This phenomenon, although frustrating, is common and can be avoided with good washing practices. In this article, we'll explore the mystery of washing at 40 degrees and how to prevent your clothes from shrinking.
Why washing at 40 degrees is common ?
Advantages of washing at 40 degrees
The wash at 40 degrees is a temperature often recommended for washing clothes. It offers a balance between cleaning efficiency and preservation of fabric fibers. This temperature removes most stains without damaging clothes.
Textiles suitable for this temperature
Most natural textiles, such as cotton and wool, as well as some synthetic textiles, can be washed at 40 degrees without risk of shrinkage. However, for delicate garments like silk or lingerie, hand wash or delicate cycle is best.
Also read: How to wash a wool sweater without any risk ?
Risks and causes of clothing shrinkage
- Impact of heat on clothing fibers: When exposed to heat, clothing fibers can contract, causing shrinkage.
- Behavior of natural fibers (cotton, wool) in the face of hot water: Natural fibers tend to contract in the presence of hot water.
- Role of spinning in the shrinkage process: Spinning at high speeds can also cause clothes to shrink.
- Interaction of chemicals and softeners with textiles: Some chemicals can affect the structure of the fabric and cause shrinkage.
- Implications of improper laundry sorting: Mixing clothes of different colors and textiles can also lead to shrinkage.
Also read: how to wash a Hoodie Blanket ?
Strategies and solutions to prevent shrinkage
- Important to consult and follow washing labels: Each garment has its own washing instructions that must be followed to prevent shrinkage.
- Selection of specific washing programs for sensitive textiles: Some garments require special care and may require a specific washing program.
- Prefer drying in the open air and flat for delicate textiles: Drying in the open air is gentler on the fibers and reduces the risk of shrinkage.
- Moderation in the use of fabric softeners when washing: Too much fabric softener can damage the fibers and promote shrinkage.
- Importance of sorting laundry according to textile type and color: Sorting laundry can prevent shrinkage and fading of clothes.
Also read: when and how to wash a sweatshirt ?
Guide to washing at 40°C: Recommendations by material
It is essential to know the specificities of each material to optimize the washing of your clothes. Here is a guide on how to wash different types of material at 40 degrees.
Cotton
cotton is a durable material that can generally be washed at 40 degrees without problem. However, for colored cotton clothing, a cold wash can help preserve the colors.
Polyester
polyester is a synthetic material that resists washing at 40 degrees. It dries quickly and resists shrinking. To learn how to wash polyester step by step, check out this guide.
Wool
wool is a delicate material which should generally not be washed at 40 degrees. Cold or hand wash is best to avoid shrinkage and preserve the softness of the wool.
Silk
silk is a very delicate material which must be washed by hand or using a cycle delicate wash. Washing at 40 degrees may damage the silk and cause shrinkage.
Lin
linen is quite durable and can generally be washed at 40 degrees. However, as it tends to crease, it is best to wash it separately.
Viscose
viscose is a delicate material that should be washed in cold water or by hand. Washing at 40 degrees may cause viscose to shrink and warp.
Acrylic
The acrylic top is a synthetic material that can be washed at 40 degrees. However, to preserve the longevity of the garment, a delicate wash cycle is recommended.
Also read: How to remove wrinkles from polyester clothing ?
Understanding the different washing temperatures
Cold washing: advantages and disadvantages
The cold wash is ideal for bright colors and delicate fabrics. It preserves colors and reduces the risk of shrinkage. However, it may not remove some stubborn stains.
Washing at 20 degrees: for which textiles ?
Clothes in dark or delicate colors and synthetic textiles in dark colors can be washed at 20 degrees.This temperature is also more energy efficient when spinning and washing.
Washing at 30 degrees: efficiency and economy
The 30 degree wash is perfect for everyday laundry and lightly soiled clothes. It is more effective at removing stains than cold washing and uses less energy than higher temperatures.
Washing at 60 degrees: when and why ?
This temperature is recommended for household linens, such as sheets and bath towels, as it eliminates the majority of bacteria.
Washing at 90 degrees: precautions and uses
Washing at 90 degrees should be reserved for heavily soiled or contaminated clothing. However, this high temperature can damage clothing and consumes a lot of energy.
Washing temperature for sheets and towels
Sheets and towels can generally be washed at 60 degrees to ensure effective bacteria removal. However, it is always best to check the washing label.
Also read: how to wash a Fleece Lined Tights ?
Tips for optimal machine washing
Importance of sorting laundry
sorting laundry according to color and type of fabric is an essential step in preserving your clothes.
Compliance with washing instructions
It is crucial to follow the washing instructions provided on each garment's label to avoid shrinkage and fading.
Hand wash vs machine wash
hand washing is often gentler for delicate garments, while the washing machine is more convenient for large quantities of laundry.
Also read: tumble dryer throw, good or bad idea ?
Conclusion
The 40 degree wash is a common choice for many types of clothing, but it is essential to understand how each type of fabric reacts to this temperature. By following washing instructions and using good practices, you can prevent your clothes from shrinking and extend their life.
Also read: Oversize cut: what is it ?
FAQ
What temperature to shrink a garment ?
Clothing shrinkage is usually caused by too high washing and drying temperatures. Generally, the higher the temperature, the greater the risk of shrinkage.
How to shrink clothing in the washing machine ?
If you want to downsize a garment on purpose, you can try washing and drying it at a higher temperature than recommended. However, this method can damage the garment.
How to shrink a garment that is too big ?
Washing and drying an item of clothing that is too large at a high temperature can cause it to shrink. However, this method should be used with caution to avoid damaging the garment.
What clothing to wash at 40 degrees ?
Most cotton, polyester and linen clothing can be washed at 40 degrees.However, it is always best to check the washing label, especially for throws, sweaters and sweatshirts which can be more delicate.
Which tumble dryer program to avoid shrinking ?
Choose a low temperature or air dry cycle to minimize the risk of shrinkage.
Can we mix colors at 30 degrees ?
It is generally best to separate colors when washing to avoid fading. However, at 30 degrees, the risk of discoloration is lower.
Is it serious to wash at 40 instead of 30 ?
Washing your clothes at 40 degrees instead of 30 can have consequences on certain textiles, particularly those made of synthetic material. These are likely to shrink or warp from excessive heat. However, for items such as bed linens or towels, washing at 40 degrees eliminates bacteria more effectively and ensures better hygiene.
What washes at 40 degrees ?
Washing at 40 degrees is ideal for the majority of everyday clothes. This temperature is high enough to ensure good hygiene, particularly for bed linens and towels, while being gentle on colored fabrics and most synthetic materials. This is also the recommended temperature for clothing with direct contact with the skin.
What temperature causes laundry to shrink ?
The temperature at which laundry risks shrinking depends on the nature of the textile. Natural fibers like cotton can start to shrink above 60 degrees, while synthetic materials are more vulnerable and can shrink at lower temperatures. It is therefore advisable to follow the instructions on the label and use a washing machine with a suitable program.
Wash at 20 degrees, how long ?
A wash cycle at 20 degrees is generally longer than a cycle at a higher temperature. This ensures efficient cleanliness while saving energy. The exact time will depend on the specific program of your washing machine and the load of laundry.
At what temperature to wash white ?
For white linen, washing at 40 degrees is often recommended to maintain whiteness without the risk of shrinking the fabrics. However, for stubborn stains or to whiten laundry, a temperature of 60 degrees can be used, taking care to check that the textiles can withstand this heat.
Updated November 2, 2023
