Choosing the right water temperature for your clothes impacts much more than the lifespan of the items you're washing: it affects your electric and water bills, how effective your washer will be at removing common stains, and even the environment.
For most loads of laundry, cold water is the best choice. However, there are a few instances, including the type of stain and the temperature of your tap water, when warm or hot water will be more effective at cleaning your clothes.
Read on to find out when you should wash your clothes in cold water and when you shouldn't.
Always Check the Care Label First
While cold should be the default water temperature when you're doing laundry for many reasons, always check the item's care label first. Most laundry care labels come with a series of symbols, one of which indicates the appropriate water temperature for that item.
Look for the icon that resembles a tub with a wavy line across the top, to represent water. Within that tub, you should see one to three dots or a specific temperature, typically between 30 and 95 degrees. These symbols indicate the following temperatures:
- Cold Water: One dot or 30 degrees
- Warm Water: Two dots or 40 degrees
- Hot Water: Three dots or 50 degrees and greater
Does Cold Water Shrink Clothes?
Although cold water will not prevent all shrinking, cold water does not generally shrink clothing. In fact, if your clothes are shrinking in the washer or dryer, heat is the more likely culprit.
Warm or hot water as well as heat from your dryer can damage the fibers in your clothes, causing issues like shrinking, fading, and more. Unless your care label specifies otherwise, you should default to a cold temperature for your laundry.
3 Reasons to Use Cold Water for Laundry
Save Energy
Choosing cold water over warm or hot water for your wash cycle has the potential to significantly reduce your electric and water bills. In fact, some sources estimate as much as 90% of the energy your washer uses can be attributed to simply heating up and maintaining the water temperature.
Unless you're trying to remove a grease stain or your item's care label specifically recommends a warm or hot water temperature, wash your laundry in cold water.
Longer-Lasting Clothes
If you want your clothes to last longer, cold water is the best choice. Warm or hot water is more likely to fade, wrinkle, and even shrink your clothes than cold water.
Regardless of your water temperature, washing clothes will break down the fabric fibers over time, but warm or hot water typically causes more damage. Cold water is much gentler on clothes, especially delicate items like bras and clothes with silk or lace as well as certain fabrics like rayon and wool.
Protect the Environment
During a wash cycle, your clothes will shed tiny microfibers. These microscopic fibers end up polluting our lakes and waterways, impacting the surrounding wildlife, water quality, and the environment at large. By simply selecting cold water for your wash cycle, you can limit this impact and better protect the environment.
Additionally, since your clothes are more likely to be damaged by warm and hot water, they'll end up in a landfill quicker than if you'd selected a cold temperature setting. If you want to prevent less waste, choose cold.
3 Reasons Not to Use Cold Water for Laundry
Removing Oil or Grease Stains
Cold water is ideal for removing a variety of stains, from chocolate to toothpaste. In fact, some stains, like those from blood, will actually set deeper into the fabric when washed with warm or hot water.
Nevertheless, the best temperature for removing a stain depends on the stain itself. For instance, warm and hot water will be more effective at removing stains from oil and sweat than cold water.
Before washing your next stained item, be sure to research proper stain removal instructions and check your item's care label to determine the appropriate temperature setting for your wash cycle.
Washing Towels or Sheets
While there are many benefits to washing clothes with cold water, warm and hot water are better at sanitizing. For this reason, if you're running a large load of items like towels and bedding that are likely covered in dirt and sweat, a warm or hot water temperature will be more effective at cleaning those items thoroughly.
You Live in a Colder Climate
Most laundry detergents work best at a temperature of 60 degrees or greater. Unfortunately, if you live in a cold-weather state, your tap water may run closer to 40 degrees. In this case, you may have to choose a warm or hot water temperature to ensure sure your laundry gets clean.
Tip
Powder laundry detergents may not be as effective with cold water. If you know that your tap water runs cold, or if you're primarily selecting cold water for your laundry, choose a liquid detergent for best results.
FAQ
Does hot water shrink clothes?
Depending on the fabric, warm and hot water may cause clothing to shrink or change shape. Always check your item's care label for proper wash instructions.
Does cotton shrink in cold water?
Cold water does not typically shrink cotton and in most cases will better prevent issues like shrinkage and wrinkles than higher water temperatures.
Should I use liquid or powder laundry detergent with cold water?
Powder laundry detergents are typically not as effective with cold water, so choose a liquid detergent for best results when you're washing with cold water.
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